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Finding the Fourth Proportional to 9,163.72, 13,747.45 and 3,898.72

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Solution

The fourth proportional to 9,163.72, 13,747.45 and 3,898.72 is: 5,848.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.72 : 13,747.45 = 3,898.72 : x
  2. Step 2: Convert to fraction form
    9,163.72/13,747.45 = 3,898.72/x
  3. Step 3: Cross multiply
    9,163.72x = 13,747.45 × 3,898.72
  4. Step 4: Simplify right side
    9,163.72x = 53,597,458.26
  5. Step 5: Solve for x
    x = 53,597,458.26/9,163.72
  6. Step 6: Final answer
    x = 5,848.88

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