Home / 10,819.44-16,231.80-6,380.88

Finding the Fourth Proportional to 10,819.44, 16,231.80 and 6,380.88

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Solution

The fourth proportional to 10,819.44, 16,231.80 and 6,380.88 is: 9,572.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.44 : 16,231.80 = 6,380.88 : x
  2. Step 2: Convert to fraction form
    10,819.44/16,231.80 = 6,380.88/x
  3. Step 3: Cross multiply
    10,819.44x = 16,231.80 × 6,380.88
  4. Step 4: Simplify right side
    10,819.44x = 103,573,167.98
  5. Step 5: Solve for x
    x = 103,573,167.98/10,819.44
  6. Step 6: Final answer
    x = 9,572.88

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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.