Home / 12,400.37-18,600.32-3,635.09

Finding the Fourth Proportional to 12,400.37, 18,600.32 and 3,635.09

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Solution

The fourth proportional to 12,400.37, 18,600.32 and 3,635.09 is: 5,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.37 : 18,600.32 = 3,635.09 : x
  2. Step 2: Convert to fraction form
    12,400.37/18,600.32 = 3,635.09/x
  3. Step 3: Cross multiply
    12,400.37x = 18,600.32 × 3,635.09
  4. Step 4: Simplify right side
    12,400.37x = 67,613,819.05
  5. Step 5: Solve for x
    x = 67,613,819.05/12,400.37
  6. Step 6: Final answer
    x = 5,452.56

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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.