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Finding the Fourth Proportional to 12,996.10, 19,494.87 and 5,500.90

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Solution

The fourth proportional to 12,996.10, 19,494.87 and 5,500.90 is: 8,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996.10 : 19,494.87 = 5,500.90 : x
  2. Step 2: Convert to fraction form
    12,996.10/19,494.87 = 5,500.90/x
  3. Step 3: Cross multiply
    12,996.10x = 19,494.87 × 5,500.90
  4. Step 4: Simplify right side
    12,996.10x = 107,239,330.38
  5. Step 5: Solve for x
    x = 107,239,330.38/12,996.10
  6. Step 6: Final answer
    x = 8,251.65

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