Home / 9,195.69-12,690.78-5,216.97

Finding the Fourth Proportional to 9,195.69, 12,690.78 and 5,216.97

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Solution

The fourth proportional to 9,195.69, 12,690.78 and 5,216.97 is: 7,199.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.69 : 12,690.78 = 5,216.97 : x
  2. Step 2: Convert to fraction form
    9,195.69/12,690.78 = 5,216.97/x
  3. Step 3: Cross multiply
    9,195.69x = 12,690.78 × 5,216.97
  4. Step 4: Simplify right side
    9,195.69x = 66,207,418.54
  5. Step 5: Solve for x
    x = 66,207,418.54/9,195.69
  6. Step 6: Final answer
    x = 7,199.83

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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.