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Finding the Third Proportional to 10,871 and 14,359

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Solution

The third proportional to 10,871 and 14,359 is: 18,966.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871 : 14,359 = 14,359 : x
  2. Step 2: Convert to fraction form
    10,871/14,359 = 14,359/x
  3. Step 3: Cross multiply
    10,871x = 14,359 × 14,359
  4. Step 4: Simplify right side
    10,871x = 206,180,881
  5. Step 5: Solve for x
    x = 206,180,881/10,871
  6. Step 6: Final answer
    x = 18,966.14

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.