Home / 8,220.24-12,330.84-2,377.68

Finding the Fourth Proportional to 8,220.24, 12,330.84 and 2,377.68

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Solution

The fourth proportional to 8,220.24, 12,330.84 and 2,377.68 is: 3,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.24 : 12,330.84 = 2,377.68 : x
  2. Step 2: Convert to fraction form
    8,220.24/12,330.84 = 2,377.68/x
  3. Step 3: Cross multiply
    8,220.24x = 12,330.84 × 2,377.68
  4. Step 4: Simplify right side
    8,220.24x = 29,318,791.65
  5. Step 5: Solve for x
    x = 29,318,791.65/8,220.24
  6. Step 6: Final answer
    x = 3,566.66

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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.