Home / 8,281.38-12,400.92-4,579.56

Finding the Fourth Proportional to 8,281.38, 12,400.92 and 4,579.56

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Solution

The fourth proportional to 8,281.38, 12,400.92 and 4,579.56 is: 6,857.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.38 : 12,400.92 = 4,579.56 : x
  2. Step 2: Convert to fraction form
    8,281.38/12,400.92 = 4,579.56/x
  3. Step 3: Cross multiply
    8,281.38x = 12,400.92 × 4,579.56
  4. Step 4: Simplify right side
    8,281.38x = 56,790,757.20
  5. Step 5: Solve for x
    x = 56,790,757.20/8,281.38
  6. Step 6: Final answer
    x = 6,857.64

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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.