Home / 7,696.26-11,540.25-3,989.30

Finding the Fourth Proportional to 7,696.26, 11,540.25 and 3,989.30

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Solution

The fourth proportional to 7,696.26, 11,540.25 and 3,989.30 is: 5,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,696.26 : 11,540.25 = 3,989.30 : x
  2. Step 2: Convert to fraction form
    7,696.26/11,540.25 = 3,989.30/x
  3. Step 3: Cross multiply
    7,696.26x = 11,540.25 × 3,989.30
  4. Step 4: Simplify right side
    7,696.26x = 46,037,519.33
  5. Step 5: Solve for x
    x = 46,037,519.33/7,696.26
  6. Step 6: Final answer
    x = 5,981.80

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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.