Home / 12,531.38-18,790.92-5,133.83

Finding the Fourth Proportional to 12,531.38, 18,790.92 and 5,133.83

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Solution

The fourth proportional to 12,531.38, 18,790.92 and 5,133.83 is: 7,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.38 : 18,790.92 = 5,133.83 : x
  2. Step 2: Convert to fraction form
    12,531.38/18,790.92 = 5,133.83/x
  3. Step 3: Cross multiply
    12,531.38x = 18,790.92 × 5,133.83
  4. Step 4: Simplify right side
    12,531.38x = 96,469,294.87
  5. Step 5: Solve for x
    x = 96,469,294.87/12,531.38
  6. Step 6: Final answer
    x = 7,698.22

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