What is the third proportional to 4 and 12?
A24
B36
C48
D72
Explanation
If c is third proportional to a and b, then a:b = b:c => 4/12 = 12/c => 4c = 144 => c = 36.
Exam Relevance
- Topic: Ratio and Proportion
- Subtopic: Proportion

No Comments