Home / 13,763.35-20,640.97-3,903.49

Finding the Fourth Proportional to 13,763.35, 20,640.97 and 3,903.49

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Solution

The fourth proportional to 13,763.35, 20,640.97 and 3,903.49 is: 5,854.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.35 : 20,640.97 = 3,903.49 : x
  2. Step 2: Convert to fraction form
    13,763.35/20,640.97 = 3,903.49/x
  3. Step 3: Cross multiply
    13,763.35x = 20,640.97 × 3,903.49
  4. Step 4: Simplify right side
    13,763.35x = 80,571,819.99
  5. Step 5: Solve for x
    x = 80,571,819.99/13,763.35
  6. Step 6: Final answer
    x = 5,854.08

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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.