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Finding the Fourth Proportional to 15,867.25, 21,896.81 and 8,794.74

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Solution

The fourth proportional to 15,867.25, 21,896.81 and 8,794.74 is: 12,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.25 : 21,896.81 = 8,794.74 : x
  2. Step 2: Convert to fraction form
    15,867.25/21,896.81 = 8,794.74/x
  3. Step 3: Cross multiply
    15,867.25x = 21,896.81 × 8,794.74
  4. Step 4: Simplify right side
    15,867.25x = 192,576,597.32
  5. Step 5: Solve for x
    x = 192,576,597.32/15,867.25
  6. Step 6: Final answer
    x = 12,136.73

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