Home / 7,769.46-11,647.68-3,086.52

Finding the Fourth Proportional to 7,769.46, 11,647.68 and 3,086.52

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Solution

The fourth proportional to 7,769.46, 11,647.68 and 3,086.52 is: 4,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.46 : 11,647.68 = 3,086.52 : x
  2. Step 2: Convert to fraction form
    7,769.46/11,647.68 = 3,086.52/x
  3. Step 3: Cross multiply
    7,769.46x = 11,647.68 × 3,086.52
  4. Step 4: Simplify right side
    7,769.46x = 35,950,797.27
  5. Step 5: Solve for x
    x = 35,950,797.27/7,769.46
  6. Step 6: Final answer
    x = 4,627.19

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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.