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Finding the Fourth Proportional to 18.81, 25.97 and 10.63

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Solution

The fourth proportional to 18.81, 25.97 and 10.63 is: 14.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.81 : 25.97 = 10.63 : x
  2. Step 2: Convert to fraction form
    18.81/25.97 = 10.63/x
  3. Step 3: Cross multiply
    18.81x = 25.97 × 10.63
  4. Step 4: Simplify right side
    18.81x = 275.97
  5. Step 5: Solve for x
    x = 275.97/18.81
  6. Step 6: Final answer
    x = 14.67

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