Question

7. If 28 is the third proportional to 7 and x, find the value of x.
​

Answer 1

Answer:

here ia your answer

Third proportional 'c'=a:b::c

Then,

7:x::x:28

so

7/x=x/28

$x = \sqrt{7 \times 28}$

$x = \sqrt{196}$

$x = 14$

Answer 2

Answer:

7: X::28:?

x=28/7

x=4

Step-by-step explanation:

hope this will help you