Home / 11,218.89-16,829.79-3,821.37

Finding the Fourth Proportional to 11,218.89, 16,829.79 and 3,821.37

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Solution

The fourth proportional to 11,218.89, 16,829.79 and 3,821.37 is: 5,732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.89 : 16,829.79 = 3,821.37 : x
  2. Step 2: Convert to fraction form
    11,218.89/16,829.79 = 3,821.37/x
  3. Step 3: Cross multiply
    11,218.89x = 16,829.79 × 3,821.37
  4. Step 4: Simplify right side
    11,218.89x = 64,312,854.61
  5. Step 5: Solve for x
    x = 64,312,854.61/11,218.89
  6. Step 6: Final answer
    x = 5,732.55

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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.