Home / 7,965.67-11,949.05-2,122.33

Finding the Fourth Proportional to 7,965.67, 11,949.05 and 2,122.33

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Solution

The fourth proportional to 7,965.67, 11,949.05 and 2,122.33 is: 3,183.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.67 : 11,949.05 = 2,122.33 : x
  2. Step 2: Convert to fraction form
    7,965.67/11,949.05 = 2,122.33/x
  3. Step 3: Cross multiply
    7,965.67x = 11,949.05 × 2,122.33
  4. Step 4: Simplify right side
    7,965.67x = 25,359,827.29
  5. Step 5: Solve for x
    x = 25,359,827.29/7,965.67
  6. Step 6: Final answer
    x = 3,183.64

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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.