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Finding the Fourth Proportional to 17,978, 26,967 and 5,666

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Solution

The fourth proportional to 17,978, 26,967 and 5,666 is: 8,499

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,978 : 26,967 = 5,666 : x
  2. Step 2: Convert to fraction form
    17,978/26,967 = 5,666/x
  3. Step 3: Cross multiply
    17,978x = 26,967 × 5,666
  4. Step 4: Simplify right side
    17,978x = 152,795,022
  5. Step 5: Solve for x
    x = 152,795,022/17,978
  6. Step 6: Final answer
    x = 8,499

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