Home / 18,309.30-27,463.95-8,445.66

Finding the Fourth Proportional to 18,309.30, 27,463.95 and 8,445.66

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Solution

The fourth proportional to 18,309.30, 27,463.95 and 8,445.66 is: 12,668.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.30 : 27,463.95 = 8,445.66 : x
  2. Step 2: Convert to fraction form
    18,309.30/27,463.95 = 8,445.66/x
  3. Step 3: Cross multiply
    18,309.30x = 27,463.95 × 8,445.66
  4. Step 4: Simplify right side
    18,309.30x = 231,951,183.96
  5. Step 5: Solve for x
    x = 231,951,183.96/18,309.30
  6. Step 6: Final answer
    x = 12,668.49

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Half scale
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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.