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Finding the Fourth Proportional to 8,110.17, 12,170.04 and 3,429.90

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Solution

The fourth proportional to 8,110.17, 12,170.04 and 3,429.90 is: 5,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.17 : 12,170.04 = 3,429.90 : x
  2. Step 2: Convert to fraction form
    8,110.17/12,170.04 = 3,429.90/x
  3. Step 3: Cross multiply
    8,110.17x = 12,170.04 × 3,429.90
  4. Step 4: Simplify right side
    8,110.17x = 41,742,020.20
  5. Step 5: Solve for x
    x = 41,742,020.20/8,110.17
  6. Step 6: Final answer
    x = 5,146.87

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