Home / 13,974.19-20,961.34-13,273.45

Finding the Fourth Proportional to 13,974.19, 20,961.34 and 13,273.45

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Solution

The fourth proportional to 13,974.19, 20,961.34 and 13,273.45 is: 19,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.19 : 20,961.34 = 13,273.45 : x
  2. Step 2: Convert to fraction form
    13,974.19/20,961.34 = 13,273.45/x
  3. Step 3: Cross multiply
    13,974.19x = 20,961.34 × 13,273.45
  4. Step 4: Simplify right side
    13,974.19x = 278,229,212.84
  5. Step 5: Solve for x
    x = 278,229,212.84/13,974.19
  6. Step 6: Final answer
    x = 19,910.22

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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.