Home / 8,091.87-12,137.54-2,545.09

Finding the Fourth Proportional to 8,091.87, 12,137.54 and 2,545.09

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Solution

The fourth proportional to 8,091.87, 12,137.54 and 2,545.09 is: 3,817.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.87 : 12,137.54 = 2,545.09 : x
  2. Step 2: Convert to fraction form
    8,091.87/12,137.54 = 2,545.09/x
  3. Step 3: Cross multiply
    8,091.87x = 12,137.54 × 2,545.09
  4. Step 4: Simplify right side
    8,091.87x = 30,891,131.68
  5. Step 5: Solve for x
    x = 30,891,131.68/8,091.87
  6. Step 6: Final answer
    x = 3,817.55

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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.