Home / 12,914.43-17,821.38-7,249.29

Finding the Fourth Proportional to 12,914.43, 17,821.38 and 7,249.29

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Solution

The fourth proportional to 12,914.43, 17,821.38 and 7,249.29 is: 10,003.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.43 : 17,821.38 = 7,249.29 : x
  2. Step 2: Convert to fraction form
    12,914.43/17,821.38 = 7,249.29/x
  3. Step 3: Cross multiply
    12,914.43x = 17,821.38 × 7,249.29
  4. Step 4: Simplify right side
    12,914.43x = 129,192,351.82
  5. Step 5: Solve for x
    x = 129,192,351.82/12,914.43
  6. Step 6: Final answer
    x = 10,003.72

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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.