Finding the Third Proportional to 7,191 and 15,718
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Solution
The third proportional to 7,191 and 15,718 is: 34,356.21
Step by Step Solution
- Step 1: Write the proportion equation
7,191 : 15,718 = 15,718 : x - Step 2: Convert to fraction form
7,191/15,718 = 15,718/x - Step 3: Cross multiply
7,191x = 15,718 × 15,718 - Step 4: Simplify right side
7,191x = 247,055,524 - Step 5: Solve for x
x = 247,055,524/7,191 - Step 6: Final answer
x = 34,356.21
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.