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Finding the Fourth Proportional to 11,338, 17,002.88 and 3,940.48

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Solution

The fourth proportional to 11,338, 17,002.88 and 3,940.48 is: 5,909.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,338 : 17,002.88 = 3,940.48 : x
  2. Step 2: Convert to fraction form
    11,338/17,002.88 = 3,940.48/x
  3. Step 3: Cross multiply
    11,338x = 17,002.88 × 3,940.48
  4. Step 4: Simplify right side
    11,338x = 66,999,508.58
  5. Step 5: Solve for x
    x = 66,999,508.58/11,338
  6. Step 6: Final answer
    x = 5,909.29

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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.