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Finding the Fourth Proportional to 8,443.65, 12,663.25 and 2,519.13

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Solution

The fourth proportional to 8,443.65, 12,663.25 and 2,519.13 is: 3,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.65 : 12,663.25 = 2,519.13 : x
  2. Step 2: Convert to fraction form
    8,443.65/12,663.25 = 2,519.13/x
  3. Step 3: Cross multiply
    8,443.65x = 12,663.25 × 2,519.13
  4. Step 4: Simplify right side
    8,443.65x = 31,900,366.67
  5. Step 5: Solve for x
    x = 31,900,366.67/8,443.65
  6. Step 6: Final answer
    x = 3,778.03

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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.