Home / 13,183.87-18,194.19-7,519.47

Finding the Fourth Proportional to 13,183.87, 18,194.19 and 7,519.47

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Solution

The fourth proportional to 13,183.87, 18,194.19 and 7,519.47 is: 10,377.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.87 : 18,194.19 = 7,519.47 : x
  2. Step 2: Convert to fraction form
    13,183.87/18,194.19 = 7,519.47/x
  3. Step 3: Cross multiply
    13,183.87x = 18,194.19 × 7,519.47
  4. Step 4: Simplify right side
    13,183.87x = 136,810,665.88
  5. Step 5: Solve for x
    x = 136,810,665.88/13,183.87
  6. Step 6: Final answer
    x = 10,377.12

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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.