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Finding the Fourth Proportional to 13,895.75, 20,843.60 and 4,661.75

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Solution

The fourth proportional to 13,895.75, 20,843.60 and 4,661.75 is: 6,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.75 : 20,843.60 = 4,661.75 : x
  2. Step 2: Convert to fraction form
    13,895.75/20,843.60 = 4,661.75/x
  3. Step 3: Cross multiply
    13,895.75x = 20,843.60 × 4,661.75
  4. Step 4: Simplify right side
    13,895.75x = 97,167,681.10
  5. Step 5: Solve for x
    x = 97,167,681.10/13,895.75
  6. Step 6: Final answer
    x = 6,992.62

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