Home / 7,891.11-11,828.66-5,119.55

Finding the Fourth Proportional to 7,891.11, 11,828.66 and 5,119.55

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Solution

The fourth proportional to 7,891.11, 11,828.66 and 5,119.55 is: 7,674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.11 : 11,828.66 = 5,119.55 : x
  2. Step 2: Convert to fraction form
    7,891.11/11,828.66 = 5,119.55/x
  3. Step 3: Cross multiply
    7,891.11x = 11,828.66 × 5,119.55
  4. Step 4: Simplify right side
    7,891.11x = 60,557,416.30
  5. Step 5: Solve for x
    x = 60,557,416.30/7,891.11
  6. Step 6: Final answer
    x = 7,674.13

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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.