Home / 7,687.89-11,517.26-4,561.29

Finding the Fourth Proportional to 7,687.89, 11,517.26 and 4,561.29

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Solution

The fourth proportional to 7,687.89, 11,517.26 and 4,561.29 is: 6,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.89 : 11,517.26 = 4,561.29 : x
  2. Step 2: Convert to fraction form
    7,687.89/11,517.26 = 4,561.29/x
  3. Step 3: Cross multiply
    7,687.89x = 11,517.26 × 4,561.29
  4. Step 4: Simplify right side
    7,687.89x = 52,533,540.06
  5. Step 5: Solve for x
    x = 52,533,540.06/7,687.89
  6. Step 6: Final answer
    x = 6,833.28

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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.