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Finding the Fourth Proportional to 8,010.78, 12,016.20 and 2,167.20

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Solution

The fourth proportional to 8,010.78, 12,016.20 and 2,167.20 is: 3,250.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,010.78 : 12,016.20 = 2,167.20 : x
  2. Step 2: Convert to fraction form
    8,010.78/12,016.20 = 2,167.20/x
  3. Step 3: Cross multiply
    8,010.78x = 12,016.20 × 2,167.20
  4. Step 4: Simplify right side
    8,010.78x = 26,041,508.64
  5. Step 5: Solve for x
    x = 26,041,508.64/8,010.78
  6. Step 6: Final answer
    x = 3,250.81

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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.