Home / 13,408.13-20,110.45-3,548.17

Finding the Fourth Proportional to 13,408.13, 20,110.45 and 3,548.17

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Solution

The fourth proportional to 13,408.13, 20,110.45 and 3,548.17 is: 5,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.13 : 20,110.45 = 3,548.17 : x
  2. Step 2: Convert to fraction form
    13,408.13/20,110.45 = 3,548.17/x
  3. Step 3: Cross multiply
    13,408.13x = 20,110.45 × 3,548.17
  4. Step 4: Simplify right side
    13,408.13x = 71,355,194.82
  5. Step 5: Solve for x
    x = 71,355,194.82/13,408.13
  6. Step 6: Final answer
    x = 5,321.79

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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.