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Finding the Fourth Proportional to 8,516.75, 11,742.54 and 5,486.73

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Solution

The fourth proportional to 8,516.75, 11,742.54 and 5,486.73 is: 7,564.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.75 : 11,742.54 = 5,486.73 : x
  2. Step 2: Convert to fraction form
    8,516.75/11,742.54 = 5,486.73/x
  3. Step 3: Cross multiply
    8,516.75x = 11,742.54 × 5,486.73
  4. Step 4: Simplify right side
    8,516.75x = 64,428,146.49
  5. Step 5: Solve for x
    x = 64,428,146.49/8,516.75
  6. Step 6: Final answer
    x = 7,564.88

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