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Finding the Fourth Proportional to 18,371.11, 27,537.15 and 11,686.58

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Solution

The fourth proportional to 18,371.11, 27,537.15 and 11,686.58 is: 17,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.11 : 27,537.15 = 11,686.58 : x
  2. Step 2: Convert to fraction form
    18,371.11/27,537.15 = 11,686.58/x
  3. Step 3: Cross multiply
    18,371.11x = 27,537.15 × 11,686.58
  4. Step 4: Simplify right side
    18,371.11x = 321,815,106.45
  5. Step 5: Solve for x
    x = 321,815,106.45/18,371.11
  6. Step 6: Final answer
    x = 17,517.46

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