Home / 8,251.62-12,381.08-3,330.87

Finding the Fourth Proportional to 8,251.62, 12,381.08 and 3,330.87

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Solution

The fourth proportional to 8,251.62, 12,381.08 and 3,330.87 is: 4,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.62 : 12,381.08 = 3,330.87 : x
  2. Step 2: Convert to fraction form
    8,251.62/12,381.08 = 3,330.87/x
  3. Step 3: Cross multiply
    8,251.62x = 12,381.08 × 3,330.87
  4. Step 4: Simplify right side
    8,251.62x = 41,239,783.87
  5. Step 5: Solve for x
    x = 41,239,783.87/8,251.62
  6. Step 6: Final answer
    x = 4,997.78

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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.