Home / 18,350.82-27,531.36-7,821.36

Finding the Fourth Proportional to 18,350.82, 27,531.36 and 7,821.36

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Solution

The fourth proportional to 18,350.82, 27,531.36 and 7,821.36 is: 11,734.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.82 : 27,531.36 = 7,821.36 : x
  2. Step 2: Convert to fraction form
    18,350.82/27,531.36 = 7,821.36/x
  3. Step 3: Cross multiply
    18,350.82x = 27,531.36 × 7,821.36
  4. Step 4: Simplify right side
    18,350.82x = 215,332,677.85
  5. Step 5: Solve for x
    x = 215,332,677.85/18,350.82
  6. Step 6: Final answer
    x = 11,734.23

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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.