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Finding the Fourth Proportional to 11,640.69, 17,462.16 and 3,743.28

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Solution

The fourth proportional to 11,640.69, 17,462.16 and 3,743.28 is: 5,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.69 : 17,462.16 = 3,743.28 : x
  2. Step 2: Convert to fraction form
    11,640.69/17,462.16 = 3,743.28/x
  3. Step 3: Cross multiply
    11,640.69x = 17,462.16 × 3,743.28
  4. Step 4: Simplify right side
    11,640.69x = 65,365,754.28
  5. Step 5: Solve for x
    x = 65,365,754.28/11,640.69
  6. Step 6: Final answer
    x = 5,615.28

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