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Finding the Third Proportional to 5,011.88 and 11,815.88

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Solution

The third proportional to 5,011.88 and 11,815.88 is: 27,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.88 : 11,815.88 = 11,815.88 : x
  2. Step 2: Convert to fraction form
    5,011.88/11,815.88 = 11,815.88/x
  3. Step 3: Cross multiply
    5,011.88x = 11,815.88 × 11,815.88
  4. Step 4: Simplify right side
    5,011.88x = 139,614,902.02
  5. Step 5: Solve for x
    x = 139,614,902.02/5,011.88
  6. Step 6: Final answer
    x = 27,856.82

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.