Home / 10,819.76-16,229.64-2,611.76

Finding the Fourth Proportional to 10,819.76, 16,229.64 and 2,611.76

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Solution

The fourth proportional to 10,819.76, 16,229.64 and 2,611.76 is: 3,917.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.76 : 16,229.64 = 2,611.76 : x
  2. Step 2: Convert to fraction form
    10,819.76/16,229.64 = 2,611.76/x
  3. Step 3: Cross multiply
    10,819.76x = 16,229.64 × 2,611.76
  4. Step 4: Simplify right side
    10,819.76x = 42,387,924.57
  5. Step 5: Solve for x
    x = 42,387,924.57/10,819.76
  6. Step 6: Final answer
    x = 3,917.64

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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.