Home / 8,222.31-12,331.67-2,377.65

Finding the Fourth Proportional to 8,222.31, 12,331.67 and 2,377.65

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Solution

The fourth proportional to 8,222.31, 12,331.67 and 2,377.65 is: 3,565.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.31 : 12,331.67 = 2,377.65 : x
  2. Step 2: Convert to fraction form
    8,222.31/12,331.67 = 2,377.65/x
  3. Step 3: Cross multiply
    8,222.31x = 12,331.67 × 2,377.65
  4. Step 4: Simplify right side
    8,222.31x = 29,320,383.29
  5. Step 5: Solve for x
    x = 29,320,383.29/8,222.31
  6. Step 6: Final answer
    x = 3,565.95

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1.5x scale

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.