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Finding the Fourth Proportional to 7,866.56, 11,799.85 and 3,249.68

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Solution

The fourth proportional to 7,866.56, 11,799.85 and 3,249.68 is: 4,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.56 : 11,799.85 = 3,249.68 : x
  2. Step 2: Convert to fraction form
    7,866.56/11,799.85 = 3,249.68/x
  3. Step 3: Cross multiply
    7,866.56x = 11,799.85 × 3,249.68
  4. Step 4: Simplify right side
    7,866.56x = 38,345,749.80
  5. Step 5: Solve for x
    x = 38,345,749.80/7,866.56
  6. Step 6: Final answer
    x = 4,874.52

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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.