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Finding the Fourth Proportional to 13,149.06, 19,684.70 and 7,939.14

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Solution

The fourth proportional to 13,149.06, 19,684.70 and 7,939.14 is: 11,885.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.06 : 19,684.70 = 7,939.14 : x
  2. Step 2: Convert to fraction form
    13,149.06/19,684.70 = 7,939.14/x
  3. Step 3: Cross multiply
    13,149.06x = 19,684.70 × 7,939.14
  4. Step 4: Simplify right side
    13,149.06x = 156,279,589.16
  5. Step 5: Solve for x
    x = 156,279,589.16/13,149.06
  6. Step 6: Final answer
    x = 11,885.23

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