Home / 9,103.20-13,635.36-5,629.92

Finding the Fourth Proportional to 9,103.20, 13,635.36 and 5,629.92

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Solution

The fourth proportional to 9,103.20, 13,635.36 and 5,629.92 is: 8,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,103.20 : 13,635.36 = 5,629.92 : x
  2. Step 2: Convert to fraction form
    9,103.20/13,635.36 = 5,629.92/x
  3. Step 3: Cross multiply
    9,103.20x = 13,635.36 × 5,629.92
  4. Step 4: Simplify right side
    9,103.20x = 76,765,985.97
  5. Step 5: Solve for x
    x = 76,765,985.97/9,103.20
  6. Step 6: Final answer
    x = 8,432.86

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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.