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Finding the Fourth Proportional to 6,820.28, 9,411.36 and 3,836.24

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Solution

The fourth proportional to 6,820.28, 9,411.36 and 3,836.24 is: 5,293.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.28 : 9,411.36 = 3,836.24 : x
  2. Step 2: Convert to fraction form
    6,820.28/9,411.36 = 3,836.24/x
  3. Step 3: Cross multiply
    6,820.28x = 9,411.36 × 3,836.24
  4. Step 4: Simplify right side
    6,820.28x = 36,104,235.69
  5. Step 5: Solve for x
    x = 36,104,235.69/6,820.28
  6. Step 6: Final answer
    x = 5,293.66

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