Find the fourth proportional of 3, 7, 12.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 28.
Let the fourth proportional be x.
3 : 7 :: 12 : x
⇒ 3x = 84
⇒ x = 28
SSC Selection Post 2022 PYQ — Question 55
SSC Selection Post - Higher Secondary Level 2022 - 2 Aug 2022 - Shift 2 • Quantitative Aptitude • Q55