Home / 12,251.28-18,381.03-4,857.87

Finding the Fourth Proportional to 12,251.28, 18,381.03 and 4,857.87

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Solution

The fourth proportional to 12,251.28, 18,381.03 and 4,857.87 is: 7,288.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.28 : 18,381.03 = 4,857.87 : x
  2. Step 2: Convert to fraction form
    12,251.28/18,381.03 = 4,857.87/x
  3. Step 3: Cross multiply
    12,251.28x = 18,381.03 × 4,857.87
  4. Step 4: Simplify right side
    12,251.28x = 89,292,704.92
  5. Step 5: Solve for x
    x = 89,292,704.92/12,251.28
  6. Step 6: Final answer
    x = 7,288.44

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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.