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Finding the Fourth Proportional to 26.02, 39 and 10.80

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Solution

The fourth proportional to 26.02, 39 and 10.80 is: 16.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.02 : 39 = 10.80 : x
  2. Step 2: Convert to fraction form
    26.02/39 = 10.80/x
  3. Step 3: Cross multiply
    26.02x = 39 × 10.80
  4. Step 4: Simplify right side
    26.02x = 421.01
  5. Step 5: Solve for x
    x = 421.01/26.02
  6. Step 6: Final answer
    x = 16.18

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