Home / 8,179.38-12,270.38-3,249.05

Finding the Fourth Proportional to 8,179.38, 12,270.38 and 3,249.05

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Solution

The fourth proportional to 8,179.38, 12,270.38 and 3,249.05 is: 4,874.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.38 : 12,270.38 = 3,249.05 : x
  2. Step 2: Convert to fraction form
    8,179.38/12,270.38 = 3,249.05/x
  3. Step 3: Cross multiply
    8,179.38x = 12,270.38 × 3,249.05
  4. Step 4: Simplify right side
    8,179.38x = 39,867,000.54
  5. Step 5: Solve for x
    x = 39,867,000.54/8,179.38
  6. Step 6: Final answer
    x = 4,874.09

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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.