Home / 8,211.97-12,322.06-3,285.15

Finding the Fourth Proportional to 8,211.97, 12,322.06 and 3,285.15

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Solution

The fourth proportional to 8,211.97, 12,322.06 and 3,285.15 is: 4,929.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.97 : 12,322.06 = 3,285.15 : x
  2. Step 2: Convert to fraction form
    8,211.97/12,322.06 = 3,285.15/x
  3. Step 3: Cross multiply
    8,211.97x = 12,322.06 × 3,285.15
  4. Step 4: Simplify right side
    8,211.97x = 40,479,815.41
  5. Step 5: Solve for x
    x = 40,479,815.41/8,211.97
  6. Step 6: Final answer
    x = 4,929.37

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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.