Home / 19,906.43-27,469.60-11,408.45

Finding the Fourth Proportional to 19,906.43, 27,469.60 and 11,408.45

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Solution

The fourth proportional to 19,906.43, 27,469.60 and 11,408.45 is: 15,742.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,906.43 : 27,469.60 = 11,408.45 : x
  2. Step 2: Convert to fraction form
    19,906.43/27,469.60 = 11,408.45/x
  3. Step 3: Cross multiply
    19,906.43x = 27,469.60 × 11,408.45
  4. Step 4: Simplify right side
    19,906.43x = 313,385,392.25
  5. Step 5: Solve for x
    x = 313,385,392.25/19,906.43
  6. Step 6: Final answer
    x = 15,742.93

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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.