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Finding the Fourth Proportional to 11,748.51, 16,213.20 and 6,443.31

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Solution

The fourth proportional to 11,748.51, 16,213.20 and 6,443.31 is: 8,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,748.51 : 16,213.20 = 6,443.31 : x
  2. Step 2: Convert to fraction form
    11,748.51/16,213.20 = 6,443.31/x
  3. Step 3: Cross multiply
    11,748.51x = 16,213.20 × 6,443.31
  4. Step 4: Simplify right side
    11,748.51x = 104,466,710.33
  5. Step 5: Solve for x
    x = 104,466,710.33/11,748.51
  6. Step 6: Final answer
    x = 8,891.91

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