Home / 12,007.17-18,013.32-3,687.75

Finding the Fourth Proportional to 12,007.17, 18,013.32 and 3,687.75

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Solution

The fourth proportional to 12,007.17, 18,013.32 and 3,687.75 is: 5,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.17 : 18,013.32 = 3,687.75 : x
  2. Step 2: Convert to fraction form
    12,007.17/18,013.32 = 3,687.75/x
  3. Step 3: Cross multiply
    12,007.17x = 18,013.32 × 3,687.75
  4. Step 4: Simplify right side
    12,007.17x = 66,428,620.83
  5. Step 5: Solve for x
    x = 66,428,620.83/12,007.17
  6. Step 6: Final answer
    x = 5,532.41

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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.