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Finding the Fourth Proportional to 13,768.93, 20,641.78 and 5,971.87

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Solution

The fourth proportional to 13,768.93, 20,641.78 and 5,971.87 is: 8,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.93 : 20,641.78 = 5,971.87 : x
  2. Step 2: Convert to fraction form
    13,768.93/20,641.78 = 5,971.87/x
  3. Step 3: Cross multiply
    13,768.93x = 20,641.78 × 5,971.87
  4. Step 4: Simplify right side
    13,768.93x = 123,269,893.66
  5. Step 5: Solve for x
    x = 123,269,893.66/13,768.93
  6. Step 6: Final answer
    x = 8,952.76

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