Home / 7,769.43-11,647.67-3,086.51

Finding the Fourth Proportional to 7,769.43, 11,647.67 and 3,086.51

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Solution

The fourth proportional to 7,769.43, 11,647.67 and 3,086.51 is: 4,627.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.43 : 11,647.67 = 3,086.51 : x
  2. Step 2: Convert to fraction form
    7,769.43/11,647.67 = 3,086.51/x
  3. Step 3: Cross multiply
    7,769.43x = 11,647.67 × 3,086.51
  4. Step 4: Simplify right side
    7,769.43x = 35,950,576.26
  5. Step 5: Solve for x
    x = 35,950,576.26/7,769.43
  6. Step 6: Final answer
    x = 4,627.18

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1.5x scale

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.