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Finding the Fourth Proportional to 12,625.98, 18,938.88 and 3,860.87

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Solution

The fourth proportional to 12,625.98, 18,938.88 and 3,860.87 is: 5,791.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.98 : 18,938.88 = 3,860.87 : x
  2. Step 2: Convert to fraction form
    12,625.98/18,938.88 = 3,860.87/x
  3. Step 3: Cross multiply
    12,625.98x = 18,938.88 × 3,860.87
  4. Step 4: Simplify right side
    12,625.98x = 73,120,458.93
  5. Step 5: Solve for x
    x = 73,120,458.93/12,625.98
  6. Step 6: Final answer
    x = 5,791.27

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