Home / 11,177.28-16,765.68-4,251.72

Finding the Fourth Proportional to 11,177.28, 16,765.68 and 4,251.72

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Solution

The fourth proportional to 11,177.28, 16,765.68 and 4,251.72 is: 6,377.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,177.28 : 16,765.68 = 4,251.72 : x
  2. Step 2: Convert to fraction form
    11,177.28/16,765.68 = 4,251.72/x
  3. Step 3: Cross multiply
    11,177.28x = 16,765.68 × 4,251.72
  4. Step 4: Simplify right side
    11,177.28x = 71,282,976.97
  5. Step 5: Solve for x
    x = 71,282,976.97/11,177.28
  6. Step 6: Final answer
    x = 6,377.49

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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.