Home / 10,367.60-15,542.04-3,789.20

Finding the Fourth Proportional to 10,367.60, 15,542.04 and 3,789.20

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Solution

The fourth proportional to 10,367.60, 15,542.04 and 3,789.20 is: 5,680.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.60 : 15,542.04 = 3,789.20 : x
  2. Step 2: Convert to fraction form
    10,367.60/15,542.04 = 3,789.20/x
  3. Step 3: Cross multiply
    10,367.60x = 15,542.04 × 3,789.20
  4. Step 4: Simplify right side
    10,367.60x = 58,891,897.97
  5. Step 5: Solve for x
    x = 58,891,897.97/10,367.60
  6. Step 6: Final answer
    x = 5,680.38

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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.