Home / 8,206.20-12,302.55-3,529.80

Finding the Fourth Proportional to 8,206.20, 12,302.55 and 3,529.80

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Solution

The fourth proportional to 8,206.20, 12,302.55 and 3,529.80 is: 5,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.20 : 12,302.55 = 3,529.80 : x
  2. Step 2: Convert to fraction form
    8,206.20/12,302.55 = 3,529.80/x
  3. Step 3: Cross multiply
    8,206.20x = 12,302.55 × 3,529.80
  4. Step 4: Simplify right side
    8,206.20x = 43,425,540.99
  5. Step 5: Solve for x
    x = 43,425,540.99/8,206.20
  6. Step 6: Final answer
    x = 5,291.80

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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.