Home / 11,210.19-16,815.13-3,819.80

Finding the Fourth Proportional to 11,210.19, 16,815.13 and 3,819.80

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Solution

The fourth proportional to 11,210.19, 16,815.13 and 3,819.80 is: 5,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.19 : 16,815.13 = 3,819.80 : x
  2. Step 2: Convert to fraction form
    11,210.19/16,815.13 = 3,819.80/x
  3. Step 3: Cross multiply
    11,210.19x = 16,815.13 × 3,819.80
  4. Step 4: Simplify right side
    11,210.19x = 64,230,433.57
  5. Step 5: Solve for x
    x = 64,230,433.57/11,210.19
  6. Step 6: Final answer
    x = 5,729.65

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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.