Home / 8,819.82-13,229.74-2,156.30

Finding the Fourth Proportional to 8,819.82, 13,229.74 and 2,156.30

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Solution

The fourth proportional to 8,819.82, 13,229.74 and 2,156.30 is: 3,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.82 : 13,229.74 = 2,156.30 : x
  2. Step 2: Convert to fraction form
    8,819.82/13,229.74 = 2,156.30/x
  3. Step 3: Cross multiply
    8,819.82x = 13,229.74 × 2,156.30
  4. Step 4: Simplify right side
    8,819.82x = 28,527,266.43
  5. Step 5: Solve for x
    x = 28,527,266.43/8,819.82
  6. Step 6: Final answer
    x = 3,234.45

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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.