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Finding the Fourth Proportional to 9,128.88, 13,692.96 and 3,282.12

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Solution

The fourth proportional to 9,128.88, 13,692.96 and 3,282.12 is: 4,923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.88 : 13,692.96 = 3,282.12 : x
  2. Step 2: Convert to fraction form
    9,128.88/13,692.96 = 3,282.12/x
  3. Step 3: Cross multiply
    9,128.88x = 13,692.96 × 3,282.12
  4. Step 4: Simplify right side
    9,128.88x = 44,941,937.88
  5. Step 5: Solve for x
    x = 44,941,937.88/9,128.88
  6. Step 6: Final answer
    x = 4,923.05

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