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Finding the Fourth Proportional to 11,042, 15,243.60 and 8,518.44

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Solution

The fourth proportional to 11,042, 15,243.60 and 8,518.44 is: 11,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,042 : 15,243.60 = 8,518.44 : x
  2. Step 2: Convert to fraction form
    11,042/15,243.60 = 8,518.44/x
  3. Step 3: Cross multiply
    11,042x = 15,243.60 × 8,518.44
  4. Step 4: Simplify right side
    11,042x = 129,851,691.98
  5. Step 5: Solve for x
    x = 129,851,691.98/11,042
  6. Step 6: Final answer
    x = 11,759.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.