Home / 8,315.27-12,469.62-3,048.70

Finding the Fourth Proportional to 8,315.27, 12,469.62 and 3,048.70

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Solution

The fourth proportional to 8,315.27, 12,469.62 and 3,048.70 is: 4,571.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.27 : 12,469.62 = 3,048.70 : x
  2. Step 2: Convert to fraction form
    8,315.27/12,469.62 = 3,048.70/x
  3. Step 3: Cross multiply
    8,315.27x = 12,469.62 × 3,048.70
  4. Step 4: Simplify right side
    8,315.27x = 38,016,143.09
  5. Step 5: Solve for x
    x = 38,016,143.09/8,315.27
  6. Step 6: Final answer
    x = 4,571.85

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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.