Home / 13,382.39-18,467.82-7,414.18

Finding the Fourth Proportional to 13,382.39, 18,467.82 and 7,414.18

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Solution

The fourth proportional to 13,382.39, 18,467.82 and 7,414.18 is: 10,231.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.39 : 18,467.82 = 7,414.18 : x
  2. Step 2: Convert to fraction form
    13,382.39/18,467.82 = 7,414.18/x
  3. Step 3: Cross multiply
    13,382.39x = 18,467.82 × 7,414.18
  4. Step 4: Simplify right side
    13,382.39x = 136,923,741.69
  5. Step 5: Solve for x
    x = 136,923,741.69/13,382.39
  6. Step 6: Final answer
    x = 10,231.64

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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.