Question

are 3,5,15 in proportions ​

Answer 1

let the fourth proportion be x

then=3:5:x:15

product of mans = product of extreme

5×x=3×15

=5x= 45

=x= 45÷5

=x=9

hence,fourth proportion =9

Ans......

my school Lal classes concept school, Bihar shrif ( NALANDA)

my name-- Divyan Raj, class-F-1