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Finding the Fourth Proportional to 10,561.93, 15,845.29 and 4,321.12

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Solution

The fourth proportional to 10,561.93, 15,845.29 and 4,321.12 is: 6,482.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.93 : 15,845.29 = 4,321.12 : x
  2. Step 2: Convert to fraction form
    10,561.93/15,845.29 = 4,321.12/x
  3. Step 3: Cross multiply
    10,561.93x = 15,845.29 × 4,321.12
  4. Step 4: Simplify right side
    10,561.93x = 68,469,399.52
  5. Step 5: Solve for x
    x = 68,469,399.52/10,561.93
  6. Step 6: Final answer
    x = 6,482.66

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