Home / 8,422.33-12,633.42-3,228.20

Finding the Fourth Proportional to 8,422.33, 12,633.42 and 3,228.20

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Solution

The fourth proportional to 8,422.33, 12,633.42 and 3,228.20 is: 4,842.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.33 : 12,633.42 = 3,228.20 : x
  2. Step 2: Convert to fraction form
    8,422.33/12,633.42 = 3,228.20/x
  3. Step 3: Cross multiply
    8,422.33x = 12,633.42 × 3,228.20
  4. Step 4: Simplify right side
    8,422.33x = 40,783,255.66
  5. Step 5: Solve for x
    x = 40,783,255.66/8,422.33
  6. Step 6: Final answer
    x = 4,842.28

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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.