Finding the Third Proportional to 5,400 and 9,900
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Solution
The third proportional to 5,400 and 9,900 is: 18,150
Step by Step Solution
- Step 1: Write the proportion equation
5,400 : 9,900 = 9,900 : x - Step 2: Convert to fraction form
5,400/9,900 = 9,900/x - Step 3: Cross multiply
5,400x = 9,900 × 9,900 - Step 4: Simplify right side
5,400x = 98,010,000 - Step 5: Solve for x
x = 98,010,000/5,400 - Step 6: Final answer
x = 18,150
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Why These Related Problems?
These problems maintain the same ratio (1.83) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.