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Finding the Fourth Proportional to 9,010.20, 13,515.30 and 8,354.10

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Solution

The fourth proportional to 9,010.20, 13,515.30 and 8,354.10 is: 12,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,010.20 : 13,515.30 = 8,354.10 : x
  2. Step 2: Convert to fraction form
    9,010.20/13,515.30 = 8,354.10/x
  3. Step 3: Cross multiply
    9,010.20x = 13,515.30 × 8,354.10
  4. Step 4: Simplify right side
    9,010.20x = 112,908,167.73
  5. Step 5: Solve for x
    x = 112,908,167.73/9,010.20
  6. Step 6: Final answer
    x = 12,531.15

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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.