Home / 11,125.29-16,687.78-2,805.25

Finding the Fourth Proportional to 11,125.29, 16,687.78 and 2,805.25

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Solution

The fourth proportional to 11,125.29, 16,687.78 and 2,805.25 is: 4,207.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.29 : 16,687.78 = 2,805.25 : x
  2. Step 2: Convert to fraction form
    11,125.29/16,687.78 = 2,805.25/x
  3. Step 3: Cross multiply
    11,125.29x = 16,687.78 × 2,805.25
  4. Step 4: Simplify right side
    11,125.29x = 46,813,452.73
  5. Step 5: Solve for x
    x = 46,813,452.73/11,125.29
  6. Step 6: Final answer
    x = 4,207.84

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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.