Home / 11,239.70-16,859.55-7,481.30

Finding the Fourth Proportional to 11,239.70, 16,859.55 and 7,481.30

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Solution

The fourth proportional to 11,239.70, 16,859.55 and 7,481.30 is: 11,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.70 : 16,859.55 = 7,481.30 : x
  2. Step 2: Convert to fraction form
    11,239.70/16,859.55 = 7,481.30/x
  3. Step 3: Cross multiply
    11,239.70x = 16,859.55 × 7,481.30
  4. Step 4: Simplify right side
    11,239.70x = 126,131,351.42
  5. Step 5: Solve for x
    x = 126,131,351.42/11,239.70
  6. Step 6: Final answer
    x = 11,221.95

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Similar ratio
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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.