Home / 8,002.25-12,001.92-2,157.49

Finding the Fourth Proportional to 8,002.25, 12,001.92 and 2,157.49

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Solution

The fourth proportional to 8,002.25, 12,001.92 and 2,157.49 is: 3,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,002.25 : 12,001.92 = 2,157.49 : x
  2. Step 2: Convert to fraction form
    8,002.25/12,001.92 = 2,157.49/x
  3. Step 3: Cross multiply
    8,002.25x = 12,001.92 × 2,157.49
  4. Step 4: Simplify right side
    8,002.25x = 25,894,022.38
  5. Step 5: Solve for x
    x = 25,894,022.38/8,002.25
  6. Step 6: Final answer
    x = 3,235.84

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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.