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Finding the Fourth Proportional to 8,034, 12,002.19 and 6,721.80

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Solution

The fourth proportional to 8,034, 12,002.19 and 6,721.80 is: 10,041.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,034 : 12,002.19 = 6,721.80 : x
  2. Step 2: Convert to fraction form
    8,034/12,002.19 = 6,721.80/x
  3. Step 3: Cross multiply
    8,034x = 12,002.19 × 6,721.80
  4. Step 4: Simplify right side
    8,034x = 80,676,320.74
  5. Step 5: Solve for x
    x = 80,676,320.74/8,034
  6. Step 6: Final answer
    x = 10,041.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.