Home / 8,306.20-12,456.59-2,758.06

Finding the Fourth Proportional to 8,306.20, 12,456.59 and 2,758.06

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Solution

The fourth proportional to 8,306.20, 12,456.59 and 2,758.06 is: 4,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,306.20 : 12,456.59 = 2,758.06 : x
  2. Step 2: Convert to fraction form
    8,306.20/12,456.59 = 2,758.06/x
  3. Step 3: Cross multiply
    8,306.20x = 12,456.59 × 2,758.06
  4. Step 4: Simplify right side
    8,306.20x = 34,356,022.62
  5. Step 5: Solve for x
    x = 34,356,022.62/8,306.20
  6. Step 6: Final answer
    x = 4,136.19

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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.