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Finding the Fourth Proportional to 15.11, 22.64 and 9.76

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Solution

The fourth proportional to 15.11, 22.64 and 9.76 is: 14.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.11 : 22.64 = 9.76 : x
  2. Step 2: Convert to fraction form
    15.11/22.64 = 9.76/x
  3. Step 3: Cross multiply
    15.11x = 22.64 × 9.76
  4. Step 4: Simplify right side
    15.11x = 220.90
  5. Step 5: Solve for x
    x = 220.90/15.11
  6. Step 6: Final answer
    x = 14.62

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