Home / 8,278.30-12,425.25-3,018.39

Finding the Fourth Proportional to 8,278.30, 12,425.25 and 3,018.39

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Solution

The fourth proportional to 8,278.30, 12,425.25 and 3,018.39 is: 4,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.30 : 12,425.25 = 3,018.39 : x
  2. Step 2: Convert to fraction form
    8,278.30/12,425.25 = 3,018.39/x
  3. Step 3: Cross multiply
    8,278.30x = 12,425.25 × 3,018.39
  4. Step 4: Simplify right side
    8,278.30x = 37,504,250.35
  5. Step 5: Solve for x
    x = 37,504,250.35/8,278.30
  6. Step 6: Final answer
    x = 4,530.43

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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.