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Finding the Third Proportional to 8,871.50 and 13,309

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Solution

The third proportional to 8,871.50 and 13,309 is: 19,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.50 : 13,309 = 13,309 : x
  2. Step 2: Convert to fraction form
    8,871.50/13,309 = 13,309/x
  3. Step 3: Cross multiply
    8,871.50x = 13,309 × 13,309
  4. Step 4: Simplify right side
    8,871.50x = 177,129,481
  5. Step 5: Solve for x
    x = 177,129,481/8,871.50
  6. Step 6: Final answer
    x = 19,966.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.