Home / 10,213.68-15,320.88-3,550.80

Finding the Fourth Proportional to 10,213.68, 15,320.88 and 3,550.80

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Solution

The fourth proportional to 10,213.68, 15,320.88 and 3,550.80 is: 5,326.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,213.68 : 15,320.88 = 3,550.80 : x
  2. Step 2: Convert to fraction form
    10,213.68/15,320.88 = 3,550.80/x
  3. Step 3: Cross multiply
    10,213.68x = 15,320.88 × 3,550.80
  4. Step 4: Simplify right side
    10,213.68x = 54,401,380.70
  5. Step 5: Solve for x
    x = 54,401,380.70/10,213.68
  6. Step 6: Final answer
    x = 5,326.33

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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.