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Finding the Fourth Proportional to 6,917.28, 10,367.28 and 3,455.52

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Solution

The fourth proportional to 6,917.28, 10,367.28 and 3,455.52 is: 5,178.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.28 : 10,367.28 = 3,455.52 : x
  2. Step 2: Convert to fraction form
    6,917.28/10,367.28 = 3,455.52/x
  3. Step 3: Cross multiply
    6,917.28x = 10,367.28 × 3,455.52
  4. Step 4: Simplify right side
    6,917.28x = 35,824,343.39
  5. Step 5: Solve for x
    x = 35,824,343.39/6,917.28
  6. Step 6: Final answer
    x = 5,178.96

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