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Finding the Fourth Proportional to 8,013.87, 12,027.01 and 5,239.79

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Solution

The fourth proportional to 8,013.87, 12,027.01 and 5,239.79 is: 7,863.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.87 : 12,027.01 = 5,239.79 : x
  2. Step 2: Convert to fraction form
    8,013.87/12,027.01 = 5,239.79/x
  3. Step 3: Cross multiply
    8,013.87x = 12,027.01 × 5,239.79
  4. Step 4: Simplify right side
    8,013.87x = 63,019,006.73
  5. Step 5: Solve for x
    x = 63,019,006.73/8,013.87
  6. Step 6: Final answer
    x = 7,863.74

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1.5x scale

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.