Question

If
3:9 ::X:15 then x is​

Answer 1

Answer:

Step-by-step explanation:

3:9::x:15

product of extremes = product of means

3*15=9x

45=9x

x=5

Answer 2

Answer:

X = 5

Step-by-step explanation:

given that 3:9 :: X:15 as a proportion

=> product of means = product of extremes

=> 3 x 15 = 9 x X

=> X = (3*15) / 9

=> X = 15/3 = 5

X = 5