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Finding the Fourth Proportional to 11,089.60, 16,610.10 and 9,631.60

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Solution

The fourth proportional to 11,089.60, 16,610.10 and 9,631.60 is: 14,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.60 : 16,610.10 = 9,631.60 : x
  2. Step 2: Convert to fraction form
    11,089.60/16,610.10 = 9,631.60/x
  3. Step 3: Cross multiply
    11,089.60x = 16,610.10 × 9,631.60
  4. Step 4: Simplify right side
    11,089.60x = 159,981,839.16
  5. Step 5: Solve for x
    x = 159,981,839.16/11,089.60
  6. Step 6: Final answer
    x = 14,426.29

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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.