Home / 12,481.22-17,219.61-8,007.44

Finding the Fourth Proportional to 12,481.22, 17,219.61 and 8,007.44

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Solution

The fourth proportional to 12,481.22, 17,219.61 and 8,007.44 is: 11,047.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.22 : 17,219.61 = 8,007.44 : x
  2. Step 2: Convert to fraction form
    12,481.22/17,219.61 = 8,007.44/x
  3. Step 3: Cross multiply
    12,481.22x = 17,219.61 × 8,007.44
  4. Step 4: Simplify right side
    12,481.22x = 137,884,907.80
  5. Step 5: Solve for x
    x = 137,884,907.80/12,481.22
  6. Step 6: Final answer
    x = 11,047.39

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.