Home / 3,830-8,386

Finding the Third Proportional to 3,830 and 8,386

Calculator

Solution

The third proportional to 3,830 and 8,386 is: 18,361.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830 : 8,386 = 8,386 : x
  2. Step 2: Convert to fraction form
    3,830/8,386 = 8,386/x
  3. Step 3: Cross multiply
    3,830x = 8,386 × 8,386
  4. Step 4: Simplify right side
    3,830x = 70,324,996
  5. Step 5: Solve for x
    x = 70,324,996/3,830
  6. Step 6: Final answer
    x = 18,361.62

Related Problems

Find third proportional to 1,915 and 4,193
Half scale
Find third proportional to 7,660 and 16,772
Double scale
Find third proportional to 3,832 and 8,390
Similar ratio
Find third proportional to 5,745 and 12,579
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.