Home / 8,049.21-12,070.85-2,782.87

Finding the Fourth Proportional to 8,049.21, 12,070.85 and 2,782.87

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Solution

The fourth proportional to 8,049.21, 12,070.85 and 2,782.87 is: 4,173.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,049.21 : 12,070.85 = 2,782.87 : x
  2. Step 2: Convert to fraction form
    8,049.21/12,070.85 = 2,782.87/x
  3. Step 3: Cross multiply
    8,049.21x = 12,070.85 × 2,782.87
  4. Step 4: Simplify right side
    8,049.21x = 33,591,545.99
  5. Step 5: Solve for x
    x = 33,591,545.99/8,049.21
  6. Step 6: Final answer
    x = 4,173.27

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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.