Home / 8,422.58-12,633.92-2,182.16

Finding the Fourth Proportional to 8,422.58, 12,633.92 and 2,182.16

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Solution

The fourth proportional to 8,422.58, 12,633.92 and 2,182.16 is: 3,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.58 : 12,633.92 = 2,182.16 : x
  2. Step 2: Convert to fraction form
    8,422.58/12,633.92 = 2,182.16/x
  3. Step 3: Cross multiply
    8,422.58x = 12,633.92 × 2,182.16
  4. Step 4: Simplify right side
    8,422.58x = 27,569,223.96
  5. Step 5: Solve for x
    x = 27,569,223.96/8,422.58
  6. Step 6: Final answer
    x = 3,273.25

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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.