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Finding the Fourth Proportional to 13,362.21, 20,032.34 and 7,801.83

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Solution

The fourth proportional to 13,362.21, 20,032.34 and 7,801.83 is: 11,696.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.21 : 20,032.34 = 7,801.83 : x
  2. Step 2: Convert to fraction form
    13,362.21/20,032.34 = 7,801.83/x
  3. Step 3: Cross multiply
    13,362.21x = 20,032.34 × 7,801.83
  4. Step 4: Simplify right side
    13,362.21x = 156,288,872.17
  5. Step 5: Solve for x
    x = 156,288,872.17/13,362.21
  6. Step 6: Final answer
    x = 11,696.33

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