Home / 13,401.75-20,103.72-4,167.75

Finding the Fourth Proportional to 13,401.75, 20,103.72 and 4,167.75

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Solution

The fourth proportional to 13,401.75, 20,103.72 and 4,167.75 is: 6,251.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.75 : 20,103.72 = 4,167.75 : x
  2. Step 2: Convert to fraction form
    13,401.75/20,103.72 = 4,167.75/x
  3. Step 3: Cross multiply
    13,401.75x = 20,103.72 × 4,167.75
  4. Step 4: Simplify right side
    13,401.75x = 83,787,279.03
  5. Step 5: Solve for x
    x = 83,787,279.03/13,401.75
  6. Step 6: Final answer
    x = 6,251.97

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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.