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Finding the Third Proportional to 8,916 and 15,924

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Solution

The third proportional to 8,916 and 15,924 is: 28,440.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916 : 15,924 = 15,924 : x
  2. Step 2: Convert to fraction form
    8,916/15,924 = 15,924/x
  3. Step 3: Cross multiply
    8,916x = 15,924 × 15,924
  4. Step 4: Simplify right side
    8,916x = 253,573,776
  5. Step 5: Solve for x
    x = 253,573,776/8,916
  6. Step 6: Final answer
    x = 28,440.31

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.