Home / 3,936-8,655

Finding the Third Proportional to 3,936 and 8,655

Calculator

Solution

The third proportional to 3,936 and 8,655 is: 19,031.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936 : 8,655 = 8,655 : x
  2. Step 2: Convert to fraction form
    3,936/8,655 = 8,655/x
  3. Step 3: Cross multiply
    3,936x = 8,655 × 8,655
  4. Step 4: Simplify right side
    3,936x = 74,909,025
  5. Step 5: Solve for x
    x = 74,909,025/3,936
  6. Step 6: Final answer
    x = 19,031.76

Related Problems

Find third proportional to 1,968 and 4,327.50
Half scale
Find third proportional to 7,872 and 17,310
Double scale
Find third proportional to 3,938 and 8,659
Similar ratio
Find third proportional to 5,904 and 12,982.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.