Home / 12,324.68-18,481.10-8,628.66

Finding the Fourth Proportional to 12,324.68, 18,481.10 and 8,628.66

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Solution

The fourth proportional to 12,324.68, 18,481.10 and 8,628.66 is: 12,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,324.68 : 18,481.10 = 8,628.66 : x
  2. Step 2: Convert to fraction form
    12,324.68/18,481.10 = 8,628.66/x
  3. Step 3: Cross multiply
    12,324.68x = 18,481.10 × 8,628.66
  4. Step 4: Simplify right side
    12,324.68x = 159,467,128.33
  5. Step 5: Solve for x
    x = 159,467,128.33/12,324.68
  6. Step 6: Final answer
    x = 12,938.85

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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.