Home / 8,171.28-12,252.60-2,976.72

Finding the Fourth Proportional to 8,171.28, 12,252.60 and 2,976.72

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Solution

The fourth proportional to 8,171.28, 12,252.60 and 2,976.72 is: 4,463.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.28 : 12,252.60 = 2,976.72 : x
  2. Step 2: Convert to fraction form
    8,171.28/12,252.60 = 2,976.72/x
  3. Step 3: Cross multiply
    8,171.28x = 12,252.60 × 2,976.72
  4. Step 4: Simplify right side
    8,171.28x = 36,472,559.47
  5. Step 5: Solve for x
    x = 36,472,559.47/8,171.28
  6. Step 6: Final answer
    x = 4,463.51

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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.