Home / 7,669.71-11,504.82-2,122.59

Finding the Fourth Proportional to 7,669.71, 11,504.82 and 2,122.59

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Solution

The fourth proportional to 7,669.71, 11,504.82 and 2,122.59 is: 3,183.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,669.71 : 11,504.82 = 2,122.59 : x
  2. Step 2: Convert to fraction form
    7,669.71/11,504.82 = 2,122.59/x
  3. Step 3: Cross multiply
    7,669.71x = 11,504.82 × 2,122.59
  4. Step 4: Simplify right side
    7,669.71x = 24,420,015.88
  5. Step 5: Solve for x
    x = 24,420,015.88/7,669.71
  6. Step 6: Final answer
    x = 3,183.96

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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.