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Finding the Fourth Proportional to 12,519.12, 17,273 and 7,481.10

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Solution

The fourth proportional to 12,519.12, 17,273 and 7,481.10 is: 10,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.12 : 17,273 = 7,481.10 : x
  2. Step 2: Convert to fraction form
    12,519.12/17,273 = 7,481.10/x
  3. Step 3: Cross multiply
    12,519.12x = 17,273 × 7,481.10
  4. Step 4: Simplify right side
    12,519.12x = 129,221,040.30
  5. Step 5: Solve for x
    x = 129,221,040.30/12,519.12
  6. Step 6: Final answer
    x = 10,321.89

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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.