Home / 8,083.21-12,124.47-2,239.68

Finding the Fourth Proportional to 8,083.21, 12,124.47 and 2,239.68

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Solution

The fourth proportional to 8,083.21, 12,124.47 and 2,239.68 is: 3,359.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.21 : 12,124.47 = 2,239.68 : x
  2. Step 2: Convert to fraction form
    8,083.21/12,124.47 = 2,239.68/x
  3. Step 3: Cross multiply
    8,083.21x = 12,124.47 × 2,239.68
  4. Step 4: Simplify right side
    8,083.21x = 27,154,932.97
  5. Step 5: Solve for x
    x = 27,154,932.97/8,083.21
  6. Step 6: Final answer
    x = 3,359.42

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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.