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Finding the Fourth Proportional to 17.82, 26.76 and 11.82

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Solution

The fourth proportional to 17.82, 26.76 and 11.82 is: 17.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.82 : 26.76 = 11.82 : x
  2. Step 2: Convert to fraction form
    17.82/26.76 = 11.82/x
  3. Step 3: Cross multiply
    17.82x = 26.76 × 11.82
  4. Step 4: Simplify right side
    17.82x = 316.30
  5. Step 5: Solve for x
    x = 316.30/17.82
  6. Step 6: Final answer
    x = 17.75

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