Home / 8,678.29-13,017.31-2,104.43

Finding the Fourth Proportional to 8,678.29, 13,017.31 and 2,104.43

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Solution

The fourth proportional to 8,678.29, 13,017.31 and 2,104.43 is: 3,156.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.29 : 13,017.31 = 2,104.43 : x
  2. Step 2: Convert to fraction form
    8,678.29/13,017.31 = 2,104.43/x
  3. Step 3: Cross multiply
    8,678.29x = 13,017.31 × 2,104.43
  4. Step 4: Simplify right side
    8,678.29x = 27,394,020.56
  5. Step 5: Solve for x
    x = 27,394,020.56/8,678.29
  6. Step 6: Final answer
    x = 3,156.62

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Why These Related Problems?

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