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Finding the Fourth Proportional to 11,955.80, 16,499.80 and 7,983.56

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Solution

The fourth proportional to 11,955.80, 16,499.80 and 7,983.56 is: 11,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.80 : 16,499.80 = 7,983.56 : x
  2. Step 2: Convert to fraction form
    11,955.80/16,499.80 = 7,983.56/x
  3. Step 3: Cross multiply
    11,955.80x = 16,499.80 × 7,983.56
  4. Step 4: Simplify right side
    11,955.80x = 131,727,194.52
  5. Step 5: Solve for x
    x = 131,727,194.52/11,955.80
  6. Step 6: Final answer
    x = 11,017.85

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