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Finding the Fourth Proportional to 6,918.71, 10,381.71 and 3,025.85

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Solution

The fourth proportional to 6,918.71, 10,381.71 and 3,025.85 is: 4,540.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.71 : 10,381.71 = 3,025.85 : x
  2. Step 2: Convert to fraction form
    6,918.71/10,381.71 = 3,025.85/x
  3. Step 3: Cross multiply
    6,918.71x = 10,381.71 × 3,025.85
  4. Step 4: Simplify right side
    6,918.71x = 31,413,497.20
  5. Step 5: Solve for x
    x = 31,413,497.20/6,918.71
  6. Step 6: Final answer
    x = 4,540.37

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