Home / 13,874.82-19,144.26-7,904.85

Finding the Fourth Proportional to 13,874.82, 19,144.26 and 7,904.85

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Solution

The fourth proportional to 13,874.82, 19,144.26 and 7,904.85 is: 10,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.82 : 19,144.26 = 7,904.85 : x
  2. Step 2: Convert to fraction form
    13,874.82/19,144.26 = 7,904.85/x
  3. Step 3: Cross multiply
    13,874.82x = 19,144.26 × 7,904.85
  4. Step 4: Simplify right side
    13,874.82x = 151,332,503.66
  5. Step 5: Solve for x
    x = 151,332,503.66/13,874.82
  6. Step 6: Final answer
    x = 10,906.99

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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.