Home / 11,139.43-16,708.98-2,819.38

Finding the Fourth Proportional to 11,139.43, 16,708.98 and 2,819.38

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Solution

The fourth proportional to 11,139.43, 16,708.98 and 2,819.38 is: 4,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.43 : 16,708.98 = 2,819.38 : x
  2. Step 2: Convert to fraction form
    11,139.43/16,708.98 = 2,819.38/x
  3. Step 3: Cross multiply
    11,139.43x = 16,708.98 × 2,819.38
  4. Step 4: Simplify right side
    11,139.43x = 47,108,964.03
  5. Step 5: Solve for x
    x = 47,108,964.03/11,139.43
  6. Step 6: Final answer
    x = 4,229.03

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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.