Home / 8,387.28-12,558.96-5,609.52

Finding the Fourth Proportional to 8,387.28, 12,558.96 and 5,609.52

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Solution

The fourth proportional to 8,387.28, 12,558.96 and 5,609.52 is: 8,399.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.28 : 12,558.96 = 5,609.52 : x
  2. Step 2: Convert to fraction form
    8,387.28/12,558.96 = 5,609.52/x
  3. Step 3: Cross multiply
    8,387.28x = 12,558.96 × 5,609.52
  4. Step 4: Simplify right side
    8,387.28x = 70,449,737.30
  5. Step 5: Solve for x
    x = 70,449,737.30/8,387.28
  6. Step 6: Final answer
    x = 8,399.59

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1.5x scale

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.