Home / 8,220.34-12,326.85-2,375.56

Finding the Fourth Proportional to 8,220.34, 12,326.85 and 2,375.56

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Solution

The fourth proportional to 8,220.34, 12,326.85 and 2,375.56 is: 3,562.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.34 : 12,326.85 = 2,375.56 : x
  2. Step 2: Convert to fraction form
    8,220.34/12,326.85 = 2,375.56/x
  3. Step 3: Cross multiply
    8,220.34x = 12,326.85 × 2,375.56
  4. Step 4: Simplify right side
    8,220.34x = 29,283,171.79
  5. Step 5: Solve for x
    x = 29,283,171.79/8,220.34
  6. Step 6: Final answer
    x = 3,562.28

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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.