Home / 8,198.70-12,291.30-3,522.30

Finding the Fourth Proportional to 8,198.70, 12,291.30 and 3,522.30

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Solution

The fourth proportional to 8,198.70, 12,291.30 and 3,522.30 is: 5,280.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.70 : 12,291.30 = 3,522.30 : x
  2. Step 2: Convert to fraction form
    8,198.70/12,291.30 = 3,522.30/x
  3. Step 3: Cross multiply
    8,198.70x = 12,291.30 × 3,522.30
  4. Step 4: Simplify right side
    8,198.70x = 43,293,645.99
  5. Step 5: Solve for x
    x = 43,293,645.99/8,198.70
  6. Step 6: Final answer
    x = 5,280.55

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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.