Home / 13,924.82-19,211.70-7,874.12

Finding the Fourth Proportional to 13,924.82, 19,211.70 and 7,874.12

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Solution

The fourth proportional to 13,924.82, 19,211.70 and 7,874.12 is: 10,863.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924.82 : 19,211.70 = 7,874.12 : x
  2. Step 2: Convert to fraction form
    13,924.82/19,211.70 = 7,874.12/x
  3. Step 3: Cross multiply
    13,924.82x = 19,211.70 × 7,874.12
  4. Step 4: Simplify right side
    13,924.82x = 151,275,231.20
  5. Step 5: Solve for x
    x = 151,275,231.20/13,924.82
  6. Step 6: Final answer
    x = 10,863.71

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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.