Find the fourth proportional of 4, 6 and 5.

Correct option is C

Given:
Numbers: 4, 6, 5
Formula Used:
If a : b = c : d, then
Fourth proportional d = $$\frac {b × c} a$$​​
Solution:
Here a = 4, b = 6, c = 5
​$$d = \frac{6 × 5 }4= \frac{30} 4$$ = 7.5
So, the fourth proportional = 7.5.