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Finding the Third Proportional to 9,711 and 16,815

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Solution

The third proportional to 9,711 and 16,815 is: 29,115.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,711 : 16,815 = 16,815 : x
  2. Step 2: Convert to fraction form
    9,711/16,815 = 16,815/x
  3. Step 3: Cross multiply
    9,711x = 16,815 × 16,815
  4. Step 4: Simplify right side
    9,711x = 282,744,225
  5. Step 5: Solve for x
    x = 282,744,225/9,711
  6. Step 6: Final answer
    x = 29,115.87

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Why These Related Problems?

These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.