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Finding the Fourth Proportional to 8,278.44, 12,417.54 and 3,013.44

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Solution

The fourth proportional to 8,278.44, 12,417.54 and 3,013.44 is: 4,520.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.44 : 12,417.54 = 3,013.44 : x
  2. Step 2: Convert to fraction form
    8,278.44/12,417.54 = 3,013.44/x
  3. Step 3: Cross multiply
    8,278.44x = 12,417.54 × 3,013.44
  4. Step 4: Simplify right side
    8,278.44x = 37,419,511.74
  5. Step 5: Solve for x
    x = 37,419,511.74/8,278.44
  6. Step 6: Final answer
    x = 4,520.12

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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.