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Finding the Fourth Proportional to 11,340.72, 17,012.57 and 3,945.74

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Solution

The fourth proportional to 11,340.72, 17,012.57 and 3,945.74 is: 5,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.72 : 17,012.57 = 3,945.74 : x
  2. Step 2: Convert to fraction form
    11,340.72/17,012.57 = 3,945.74/x
  3. Step 3: Cross multiply
    11,340.72x = 17,012.57 × 3,945.74
  4. Step 4: Simplify right side
    11,340.72x = 67,127,177.95
  5. Step 5: Solve for x
    x = 67,127,177.95/11,340.72
  6. Step 6: Final answer
    x = 5,919.13

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