Home / 11,140.32-16,708.92-2,819.82

Finding the Fourth Proportional to 11,140.32, 16,708.92 and 2,819.82

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Solution

The fourth proportional to 11,140.32, 16,708.92 and 2,819.82 is: 4,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.32 : 16,708.92 = 2,819.82 : x
  2. Step 2: Convert to fraction form
    11,140.32/16,708.92 = 2,819.82/x
  3. Step 3: Cross multiply
    11,140.32x = 16,708.92 × 2,819.82
  4. Step 4: Simplify right side
    11,140.32x = 47,116,146.79
  5. Step 5: Solve for x
    x = 47,116,146.79/11,140.32
  6. Step 6: Final answer
    x = 4,229.34

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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.