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Finding the Fourth Proportional to 8,693.72, 13,040.58 and 2,119.94

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Solution

The fourth proportional to 8,693.72, 13,040.58 and 2,119.94 is: 3,179.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.72 : 13,040.58 = 2,119.94 : x
  2. Step 2: Convert to fraction form
    8,693.72/13,040.58 = 2,119.94/x
  3. Step 3: Cross multiply
    8,693.72x = 13,040.58 × 2,119.94
  4. Step 4: Simplify right side
    8,693.72x = 27,645,247.17
  5. Step 5: Solve for x
    x = 27,645,247.17/8,693.72
  6. Step 6: Final answer
    x = 3,179.91

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