Home / 8,188.24-12,286.68-6,422.44

Finding the Fourth Proportional to 8,188.24, 12,286.68 and 6,422.44

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Solution

The fourth proportional to 8,188.24, 12,286.68 and 6,422.44 is: 9,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.24 : 12,286.68 = 6,422.44 : x
  2. Step 2: Convert to fraction form
    8,188.24/12,286.68 = 6,422.44/x
  3. Step 3: Cross multiply
    8,188.24x = 12,286.68 × 6,422.44
  4. Step 4: Simplify right side
    8,188.24x = 78,910,465.10
  5. Step 5: Solve for x
    x = 78,910,465.10/8,188.24
  6. Step 6: Final answer
    x = 9,637.05

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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.