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Finding the Fourth Proportional to 11,517.86, 17,253.86 and 8,876.15

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Solution

The fourth proportional to 11,517.86, 17,253.86 and 8,876.15 is: 13,296.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.86 : 17,253.86 = 8,876.15 : x
  2. Step 2: Convert to fraction form
    11,517.86/17,253.86 = 8,876.15/x
  3. Step 3: Cross multiply
    11,517.86x = 17,253.86 × 8,876.15
  4. Step 4: Simplify right side
    11,517.86x = 153,147,718.79
  5. Step 5: Solve for x
    x = 153,147,718.79/11,517.86
  6. Step 6: Final answer
    x = 13,296.55

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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.