Home / 8,251.39-12,371.55-3,249.19

Finding the Fourth Proportional to 8,251.39, 12,371.55 and 3,249.19

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Solution

The fourth proportional to 8,251.39, 12,371.55 and 3,249.19 is: 4,871.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.39 : 12,371.55 = 3,249.19 : x
  2. Step 2: Convert to fraction form
    8,251.39/12,371.55 = 3,249.19/x
  3. Step 3: Cross multiply
    8,251.39x = 12,371.55 × 3,249.19
  4. Step 4: Simplify right side
    8,251.39x = 40,197,516.54
  5. Step 5: Solve for x
    x = 40,197,516.54/8,251.39
  6. Step 6: Final answer
    x = 4,871.61

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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.