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Finding the Fourth Proportional to 8,249.36, 12,375.86 and 2,406.42

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Solution

The fourth proportional to 8,249.36, 12,375.86 and 2,406.42 is: 3,610.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.36 : 12,375.86 = 2,406.42 : x
  2. Step 2: Convert to fraction form
    8,249.36/12,375.86 = 2,406.42/x
  3. Step 3: Cross multiply
    8,249.36x = 12,375.86 × 2,406.42
  4. Step 4: Simplify right side
    8,249.36x = 29,781,517.02
  5. Step 5: Solve for x
    x = 29,781,517.02/8,249.36
  6. Step 6: Final answer
    x = 3,610.16

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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.