Home / 8,010.90-12,016.35-7,427.70

Finding the Fourth Proportional to 8,010.90, 12,016.35 and 7,427.70

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Solution

The fourth proportional to 8,010.90, 12,016.35 and 7,427.70 is: 11,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,010.90 : 12,016.35 = 7,427.70 : x
  2. Step 2: Convert to fraction form
    8,010.90/12,016.35 = 7,427.70/x
  3. Step 3: Cross multiply
    8,010.90x = 12,016.35 × 7,427.70
  4. Step 4: Simplify right side
    8,010.90x = 89,253,842.90
  5. Step 5: Solve for x
    x = 89,253,842.90/8,010.90
  6. Step 6: Final answer
    x = 11,141.55

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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.