Home / 10,171.28-15,257.92-3,151.02

Finding the Fourth Proportional to 10,171.28, 15,257.92 and 3,151.02

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Solution

The fourth proportional to 10,171.28, 15,257.92 and 3,151.02 is: 4,726.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,171.28 : 15,257.92 = 3,151.02 : x
  2. Step 2: Convert to fraction form
    10,171.28/15,257.92 = 3,151.02/x
  3. Step 3: Cross multiply
    10,171.28x = 15,257.92 × 3,151.02
  4. Step 4: Simplify right side
    10,171.28x = 48,078,011.08
  5. Step 5: Solve for x
    x = 48,078,011.08/10,171.28
  6. Step 6: Final answer
    x = 4,726.84

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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.