Home / 8,206.97-12,301.61-3,981.28

Finding the Fourth Proportional to 8,206.97, 12,301.61 and 3,981.28

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Solution

The fourth proportional to 8,206.97, 12,301.61 and 3,981.28 is: 5,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.97 : 12,301.61 = 3,981.28 : x
  2. Step 2: Convert to fraction form
    8,206.97/12,301.61 = 3,981.28/x
  3. Step 3: Cross multiply
    8,206.97x = 12,301.61 × 3,981.28
  4. Step 4: Simplify right side
    8,206.97x = 48,976,092.35
  5. Step 5: Solve for x
    x = 48,976,092.35/8,206.97
  6. Step 6: Final answer
    x = 5,967.62

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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.