Home / 8,747.52-13,121.28-3,553.80

Finding the Fourth Proportional to 8,747.52, 13,121.28 and 3,553.80

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Solution

The fourth proportional to 8,747.52, 13,121.28 and 3,553.80 is: 5,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.52 : 13,121.28 = 3,553.80 : x
  2. Step 2: Convert to fraction form
    8,747.52/13,121.28 = 3,553.80/x
  3. Step 3: Cross multiply
    8,747.52x = 13,121.28 × 3,553.80
  4. Step 4: Simplify right side
    8,747.52x = 46,630,404.86
  5. Step 5: Solve for x
    x = 46,630,404.86/8,747.52
  6. Step 6: Final answer
    x = 5,330.70

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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.