Home / 8,072.16-12,107.28-3,451.68

Finding the Fourth Proportional to 8,072.16, 12,107.28 and 3,451.68

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Solution

The fourth proportional to 8,072.16, 12,107.28 and 3,451.68 is: 5,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.16 : 12,107.28 = 3,451.68 : x
  2. Step 2: Convert to fraction form
    8,072.16/12,107.28 = 3,451.68/x
  3. Step 3: Cross multiply
    8,072.16x = 12,107.28 × 3,451.68
  4. Step 4: Simplify right side
    8,072.16x = 41,790,456.23
  5. Step 5: Solve for x
    x = 41,790,456.23/8,072.16
  6. Step 6: Final answer
    x = 5,177.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.