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Finding the Fourth Proportional to 6,902.75, 9,525.84 and 3,918.63

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Solution

The fourth proportional to 6,902.75, 9,525.84 and 3,918.63 is: 5,407.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,902.75 : 9,525.84 = 3,918.63 : x
  2. Step 2: Convert to fraction form
    6,902.75/9,525.84 = 3,918.63/x
  3. Step 3: Cross multiply
    6,902.75x = 9,525.84 × 3,918.63
  4. Step 4: Simplify right side
    6,902.75x = 37,328,236.63
  5. Step 5: Solve for x
    x = 37,328,236.63/6,902.75
  6. Step 6: Final answer
    x = 5,407.74

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