Yes, approximately.
The moon's gravity is one-sixth that of the Earth's;
About 0.183g, where one g is the earths gravity, so about one fifth of the earths gravity. It is similar to our own moons surface gravity.
Of the planets in our solar system, Mars has the lowest surface gravity of around 38% of earths - over one third. This comes closest to the 25%. We then have moons and dwarf planets, but these have much lower surface gravities.
One moon, no rings.
The moon's gravity is essentially identical to 100% of the moon's gravity, and results in gravitational forces on its surface that average about 16% of the corresponding forces on the Earth's surface.
As good as. If you weigh 100 lbs on earth, you would weigh 16.54 lbs on the moon. One sixth of 100 equals 16.6666.... Close enough.
The moon has one-sixth of the Earths gravity.
The gravitational pull of Earth's moon is about 1/6th that of Earth. This pull is what causes tides on Earth and keeps the moon in orbit around our planet. It also affects the Earth's rotation and the tilt of its axis.
One sixth.
The diameter of the Moon is about 1/4 (one fourth) the diameter of the Earth (more precisely 27.2%). Moon diameter = 3476 km (equator) 3472 km (polar) Earth's diameter = 12756 km (equator), 12742 km (polar)
The moon has one-sixth the gravity of earth.
In our solar system, at least, the planet with the greatest mass does happen to be the one with the most known moons. But I think the cause and effect work the other way. It's not the moons that give the planet strong gravity. It's the strong gravity of the planet that captures a bunch of moons.