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Finding the Fourth Proportional to 8,008.65, 12,013.70 and 2,814.57

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Solution

The fourth proportional to 8,008.65, 12,013.70 and 2,814.57 is: 4,222.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,008.65 : 12,013.70 = 2,814.57 : x
  2. Step 2: Convert to fraction form
    8,008.65/12,013.70 = 2,814.57/x
  3. Step 3: Cross multiply
    8,008.65x = 12,013.70 × 2,814.57
  4. Step 4: Simplify right side
    8,008.65x = 33,813,385.54
  5. Step 5: Solve for x
    x = 33,813,385.54/8,008.65
  6. Step 6: Final answer
    x = 4,222.11

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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.