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Finding the Fourth Proportional to 13,830.55, 20,745.83 and 5,927.93

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Solution

The fourth proportional to 13,830.55, 20,745.83 and 5,927.93 is: 8,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.55 : 20,745.83 = 5,927.93 : x
  2. Step 2: Convert to fraction form
    13,830.55/20,745.83 = 5,927.93/x
  3. Step 3: Cross multiply
    13,830.55x = 20,745.83 × 5,927.93
  4. Step 4: Simplify right side
    13,830.55x = 122,979,887.31
  5. Step 5: Solve for x
    x = 122,979,887.31/13,830.55
  6. Step 6: Final answer
    x = 8,891.90

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