Home / 11,306.82-15,589.07-8,080.49

Finding the Fourth Proportional to 11,306.82, 15,589.07 and 8,080.49

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Solution

The fourth proportional to 11,306.82, 15,589.07 and 8,080.49 is: 11,140.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,306.82 : 15,589.07 = 8,080.49 : x
  2. Step 2: Convert to fraction form
    11,306.82/15,589.07 = 8,080.49/x
  3. Step 3: Cross multiply
    11,306.82x = 15,589.07 × 8,080.49
  4. Step 4: Simplify right side
    11,306.82x = 125,967,363.22
  5. Step 5: Solve for x
    x = 125,967,363.22/11,306.82
  6. Step 6: Final answer
    x = 11,140.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.