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Finding the Third Proportional to 8,251.88 and 11,211.19

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Solution

The third proportional to 8,251.88 and 11,211.19 is: 15,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.88 : 11,211.19 = 11,211.19 : x
  2. Step 2: Convert to fraction form
    8,251.88/11,211.19 = 11,211.19/x
  3. Step 3: Cross multiply
    8,251.88x = 11,211.19 × 11,211.19
  4. Step 4: Simplify right side
    8,251.88x = 125,690,725.16
  5. Step 5: Solve for x
    x = 125,690,725.16/8,251.88
  6. Step 6: Final answer
    x = 15,231.78

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.