Home / 13,408.75-20,114.22-4,174.75

Finding the Fourth Proportional to 13,408.75, 20,114.22 and 4,174.75

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Solution

The fourth proportional to 13,408.75, 20,114.22 and 4,174.75 is: 6,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.75 : 20,114.22 = 4,174.75 : x
  2. Step 2: Convert to fraction form
    13,408.75/20,114.22 = 4,174.75/x
  3. Step 3: Cross multiply
    13,408.75x = 20,114.22 × 4,174.75
  4. Step 4: Simplify right side
    13,408.75x = 83,971,839.95
  5. Step 5: Solve for x
    x = 83,971,839.95/13,408.75
  6. Step 6: Final answer
    x = 6,262.47

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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.