Home / 8,822.20-13,229.15-5,125.47

Finding the Fourth Proportional to 8,822.20, 13,229.15 and 5,125.47

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Solution

The fourth proportional to 8,822.20, 13,229.15 and 5,125.47 is: 7,685.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,822.20 : 13,229.15 = 5,125.47 : x
  2. Step 2: Convert to fraction form
    8,822.20/13,229.15 = 5,125.47/x
  3. Step 3: Cross multiply
    8,822.20x = 13,229.15 × 5,125.47
  4. Step 4: Simplify right side
    8,822.20x = 67,805,611.45
  5. Step 5: Solve for x
    x = 67,805,611.45/8,822.20
  6. Step 6: Final answer
    x = 7,685.79

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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.