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Finding the Fourth Proportional to 15.94, 23.82 and 11.92

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Solution

The fourth proportional to 15.94, 23.82 and 11.92 is: 17.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.94 : 23.82 = 11.92 : x
  2. Step 2: Convert to fraction form
    15.94/23.82 = 11.92/x
  3. Step 3: Cross multiply
    15.94x = 23.82 × 11.92
  4. Step 4: Simplify right side
    15.94x = 283.93
  5. Step 5: Solve for x
    x = 283.93/15.94
  6. Step 6: Final answer
    x = 17.81

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