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Finding the Fourth Proportional to 8,943.81, 13,420.26 and 6,765.92

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Solution

The fourth proportional to 8,943.81, 13,420.26 and 6,765.92 is: 10,152.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.81 : 13,420.26 = 6,765.92 : x
  2. Step 2: Convert to fraction form
    8,943.81/13,420.26 = 6,765.92/x
  3. Step 3: Cross multiply
    8,943.81x = 13,420.26 × 6,765.92
  4. Step 4: Simplify right side
    8,943.81x = 90,800,405.54
  5. Step 5: Solve for x
    x = 90,800,405.54/8,943.81
  6. Step 6: Final answer
    x = 10,152.32

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