If you mean the time: las cuatro y cuarto
If you mean simply the numbers: cuatro, quince.
Cuatro y cuarto
To say "he is fifteen" in Spanish, you would say "él tiene quince años." Literally, this means "he has fifteen years." That may seem a little odd to English speakers, but that is how a person's age is described in Spanish.
'Las siete y quince' or 'las siete y cuarto'.
Fifteen is "quinze" in French.
It depends on whether you are using common Spanish number punctuation or the English system. Written in Spanish (in most countries), 4.315 would be "cuatro mil trecientos quince"; in English, it would be "four thousand three hundred fifteen." Using English notation, 4.315 would be "four point three one five" or "four and three hundred fifteen thousandths" in English and "cuatro punto tres uno cinco" or "cuatro y trecientos quince milésimos" in Spanish.
Cuarta is the Spanish word for "fourth".
Four fifteen in Spanish is "cuatro quince."
Quince
quince - which sounds like 'keen-say'
quince dias
Las nueve y cuarto.
It is 'quince' (pronounced 'KEENthay') ('th' as in 'thin')
To say "he is fifteen" in Spanish, you would say "él tiene quince años." Literally, this means "he has fifteen years." That may seem a little odd to English speakers, but that is how a person's age is described in Spanish.
fifteen thousand, four hundred nine.
cuatro
I think it's once (on-se) quince (kin-se).
Fifteen thousand, four hundred nine.
Cuádruplex