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Finding the Fourth Proportional to 12,733.83, 17,571.72 and 7,143.75

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Solution

The fourth proportional to 12,733.83, 17,571.72 and 7,143.75 is: 9,857.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,733.83 : 17,571.72 = 7,143.75 : x
  2. Step 2: Convert to fraction form
    12,733.83/17,571.72 = 7,143.75/x
  3. Step 3: Cross multiply
    12,733.83x = 17,571.72 × 7,143.75
  4. Step 4: Simplify right side
    12,733.83x = 125,527,974.75
  5. Step 5: Solve for x
    x = 125,527,974.75/12,733.83
  6. Step 6: Final answer
    x = 9,857.83

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