Question

If a, b, c, d are in proportion and a =3, b = 9, c = 5 then find the value of d ​

Answer 1

Answer:

if a,b,c,d are in proportion then a/b=c/d; therefore 3/9=5/d so d=15

Step-by-step explanation:

Answer 2

The value of d is 15.

Given:

a=3, b=9, c=5

To find:

The value of d

Solution:

We know that the terms are in proportion to one another.

So, a:b::c:d.

We can also write it as follows.

a/b=c/d

Using the values,

3/9=5/d

1/3=5/d

d/3=5

d=5×3

d=15

Therefore, the value of d is 15.