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Finding the Fourth Proportional to 13,935.72, 20,903.96 and 4,073.96

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Solution

The fourth proportional to 13,935.72, 20,903.96 and 4,073.96 is: 6,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.72 : 20,903.96 = 4,073.96 : x
  2. Step 2: Convert to fraction form
    13,935.72/20,903.96 = 4,073.96/x
  3. Step 3: Cross multiply
    13,935.72x = 20,903.96 × 4,073.96
  4. Step 4: Simplify right side
    13,935.72x = 85,161,896.88
  5. Step 5: Solve for x
    x = 85,161,896.88/13,935.72
  6. Step 6: Final answer
    x = 6,111.05

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