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Finding the Third Proportional to 5,251.50 and 10,413

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Solution

The third proportional to 5,251.50 and 10,413 is: 20,647.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.50 : 10,413 = 10,413 : x
  2. Step 2: Convert to fraction form
    5,251.50/10,413 = 10,413/x
  3. Step 3: Cross multiply
    5,251.50x = 10,413 × 10,413
  4. Step 4: Simplify right side
    5,251.50x = 108,430,569
  5. Step 5: Solve for x
    x = 108,430,569/5,251.50
  6. Step 6: Final answer
    x = 20,647.54

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.