Home / 8,228.46-12,336.48-2,678.49

Finding the Fourth Proportional to 8,228.46, 12,336.48 and 2,678.49

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Solution

The fourth proportional to 8,228.46, 12,336.48 and 2,678.49 is: 4,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.46 : 12,336.48 = 2,678.49 : x
  2. Step 2: Convert to fraction form
    8,228.46/12,336.48 = 2,678.49/x
  3. Step 3: Cross multiply
    8,228.46x = 12,336.48 × 2,678.49
  4. Step 4: Simplify right side
    8,228.46x = 33,043,138.32
  5. Step 5: Solve for x
    x = 33,043,138.32/8,228.46
  6. Step 6: Final answer
    x = 4,015.71

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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.