Home / 8,122.92-12,181.21-2,498.91

Finding the Fourth Proportional to 8,122.92, 12,181.21 and 2,498.91

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Solution

The fourth proportional to 8,122.92, 12,181.21 and 2,498.91 is: 3,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.92 : 12,181.21 = 2,498.91 : x
  2. Step 2: Convert to fraction form
    8,122.92/12,181.21 = 2,498.91/x
  3. Step 3: Cross multiply
    8,122.92x = 12,181.21 × 2,498.91
  4. Step 4: Simplify right side
    8,122.92x = 30,439,788.23
  5. Step 5: Solve for x
    x = 30,439,788.23/8,122.92
  6. Step 6: Final answer
    x = 3,747.39

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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.