Home / 19,614.38-29,405.03-8,512.70

Finding the Fourth Proportional to 19,614.38, 29,405.03 and 8,512.70

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Solution

The fourth proportional to 19,614.38, 29,405.03 and 8,512.70 is: 12,761.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.38 : 29,405.03 = 8,512.70 : x
  2. Step 2: Convert to fraction form
    19,614.38/29,405.03 = 8,512.70/x
  3. Step 3: Cross multiply
    19,614.38x = 29,405.03 × 8,512.70
  4. Step 4: Simplify right side
    19,614.38x = 250,316,198.88
  5. Step 5: Solve for x
    x = 250,316,198.88/19,614.38
  6. Step 6: Final answer
    x = 12,761.87

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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.