Home / 15,151.20-22,726.80-9,311.10

Finding the Fourth Proportional to 15,151.20, 22,726.80 and 9,311.10

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Solution

The fourth proportional to 15,151.20, 22,726.80 and 9,311.10 is: 13,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,151.20 : 22,726.80 = 9,311.10 : x
  2. Step 2: Convert to fraction form
    15,151.20/22,726.80 = 9,311.10/x
  3. Step 3: Cross multiply
    15,151.20x = 22,726.80 × 9,311.10
  4. Step 4: Simplify right side
    15,151.20x = 211,611,507.48
  5. Step 5: Solve for x
    x = 211,611,507.48/15,151.20
  6. Step 6: Final answer
    x = 13,966.65

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Double scale
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Similar ratio
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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.