Home / 3,508-8,122

Finding the Third Proportional to 3,508 and 8,122

Calculator

Solution

The third proportional to 3,508 and 8,122 is: 18,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508 : 8,122 = 8,122 : x
  2. Step 2: Convert to fraction form
    3,508/8,122 = 8,122/x
  3. Step 3: Cross multiply
    3,508x = 8,122 × 8,122
  4. Step 4: Simplify right side
    3,508x = 65,966,884
  5. Step 5: Solve for x
    x = 65,966,884/3,508
  6. Step 6: Final answer
    x = 18,804.70

Related Problems

Find third proportional to 1,754 and 4,061
Half scale
Find third proportional to 7,016 and 16,244
Double scale
Find third proportional to 3,510 and 8,127
Similar ratio
Find third proportional to 5,262 and 12,183
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.