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Finding the Fourth Proportional to 13,653.11, 20,460.42 and 10,867.38

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Solution

The fourth proportional to 13,653.11, 20,460.42 and 10,867.38 is: 16,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.11 : 20,460.42 = 10,867.38 : x
  2. Step 2: Convert to fraction form
    13,653.11/20,460.42 = 10,867.38/x
  3. Step 3: Cross multiply
    13,653.11x = 20,460.42 × 10,867.38
  4. Step 4: Simplify right side
    13,653.11x = 222,351,159.10
  5. Step 5: Solve for x
    x = 222,351,159.10/13,653.11
  6. Step 6: Final answer
    x = 16,285.76

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