Home / 8,488.28-12,723.66-3,560.78

Finding the Fourth Proportional to 8,488.28, 12,723.66 and 3,560.78

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Solution

The fourth proportional to 8,488.28, 12,723.66 and 3,560.78 is: 5,337.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.28 : 12,723.66 = 3,560.78 : x
  2. Step 2: Convert to fraction form
    8,488.28/12,723.66 = 3,560.78/x
  3. Step 3: Cross multiply
    8,488.28x = 12,723.66 × 3,560.78
  4. Step 4: Simplify right side
    8,488.28x = 45,306,154.05
  5. Step 5: Solve for x
    x = 45,306,154.05/8,488.28
  6. Step 6: Final answer
    x = 5,337.50

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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.