Home / 8,657.28-12,984.10-3,725.60

Finding the Fourth Proportional to 8,657.28, 12,984.10 and 3,725.60

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Solution

The fourth proportional to 8,657.28, 12,984.10 and 3,725.60 is: 5,587.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.28 : 12,984.10 = 3,725.60 : x
  2. Step 2: Convert to fraction form
    8,657.28/12,984.10 = 3,725.60/x
  3. Step 3: Cross multiply
    8,657.28x = 12,984.10 × 3,725.60
  4. Step 4: Simplify right side
    8,657.28x = 48,373,488.73
  5. Step 5: Solve for x
    x = 48,373,488.73/8,657.28
  6. Step 6: Final answer
    x = 5,587.61

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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.