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Finding the Fourth Proportional to 11,317.12, 16,951.08 and 6,921.28

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Solution

The fourth proportional to 11,317.12, 16,951.08 and 6,921.28 is: 10,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.12 : 16,951.08 = 6,921.28 : x
  2. Step 2: Convert to fraction form
    11,317.12/16,951.08 = 6,921.28/x
  3. Step 3: Cross multiply
    11,317.12x = 16,951.08 × 6,921.28
  4. Step 4: Simplify right side
    11,317.12x = 117,323,170.98
  5. Step 5: Solve for x
    x = 117,323,170.98/11,317.12
  6. Step 6: Final answer
    x = 10,366.88

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