Home / 11,212.19-16,818.13-3,821.80

Finding the Fourth Proportional to 11,212.19, 16,818.13 and 3,821.80

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Solution

The fourth proportional to 11,212.19, 16,818.13 and 3,821.80 is: 5,732.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.19 : 16,818.13 = 3,821.80 : x
  2. Step 2: Convert to fraction form
    11,212.19/16,818.13 = 3,821.80/x
  3. Step 3: Cross multiply
    11,212.19x = 16,818.13 × 3,821.80
  4. Step 4: Simplify right side
    11,212.19x = 64,275,529.23
  5. Step 5: Solve for x
    x = 64,275,529.23/11,212.19
  6. Step 6: Final answer
    x = 5,732.65

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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.