Home / 11,249.20-16,864.20-7,951.92

Finding the Fourth Proportional to 11,249.20, 16,864.20 and 7,951.92

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Solution

The fourth proportional to 11,249.20, 16,864.20 and 7,951.92 is: 11,921.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.20 : 16,864.20 = 7,951.92 : x
  2. Step 2: Convert to fraction form
    11,249.20/16,864.20 = 7,951.92/x
  3. Step 3: Cross multiply
    11,249.20x = 16,864.20 × 7,951.92
  4. Step 4: Simplify right side
    11,249.20x = 134,102,769.26
  5. Step 5: Solve for x
    x = 134,102,769.26/11,249.20
  6. Step 6: Final answer
    x = 11,921.09

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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.