Home / 12,321.24-18,481.32-3,556.52

Finding the Fourth Proportional to 12,321.24, 18,481.32 and 3,556.52

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Solution

The fourth proportional to 12,321.24, 18,481.32 and 3,556.52 is: 5,334.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.24 : 18,481.32 = 3,556.52 : x
  2. Step 2: Convert to fraction form
    12,321.24/18,481.32 = 3,556.52/x
  3. Step 3: Cross multiply
    12,321.24x = 18,481.32 × 3,556.52
  4. Step 4: Simplify right side
    12,321.24x = 65,729,184.21
  5. Step 5: Solve for x
    x = 65,729,184.21/12,321.24
  6. Step 6: Final answer
    x = 5,334.62

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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.