Home / 18,238.76-25,169.10-10,684.16

Finding the Fourth Proportional to 18,238.76, 25,169.10 and 10,684.16

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Solution

The fourth proportional to 18,238.76, 25,169.10 and 10,684.16 is: 14,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.76 : 25,169.10 = 10,684.16 : x
  2. Step 2: Convert to fraction form
    18,238.76/25,169.10 = 10,684.16/x
  3. Step 3: Cross multiply
    18,238.76x = 25,169.10 × 10,684.16
  4. Step 4: Simplify right side
    18,238.76x = 268,910,691.46
  5. Step 5: Solve for x
    x = 268,910,691.46/18,238.76
  6. Step 6: Final answer
    x = 14,743.91

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.