Home / 12,469.20-18,687.66-5,065.07

Finding the Fourth Proportional to 12,469.20, 18,687.66 and 5,065.07

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Solution

The fourth proportional to 12,469.20, 18,687.66 and 5,065.07 is: 7,591.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.20 : 18,687.66 = 5,065.07 : x
  2. Step 2: Convert to fraction form
    12,469.20/18,687.66 = 5,065.07/x
  3. Step 3: Cross multiply
    12,469.20x = 18,687.66 × 5,065.07
  4. Step 4: Simplify right side
    12,469.20x = 94,654,212.60
  5. Step 5: Solve for x
    x = 94,654,212.60/12,469.20
  6. Step 6: Final answer
    x = 7,591.04

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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.