Home / 3,982-8,672

Finding the Third Proportional to 3,982 and 8,672

Calculator

Solution

The third proportional to 3,982 and 8,672 is: 18,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982 : 8,672 = 8,672 : x
  2. Step 2: Convert to fraction form
    3,982/8,672 = 8,672/x
  3. Step 3: Cross multiply
    3,982x = 8,672 × 8,672
  4. Step 4: Simplify right side
    3,982x = 75,203,584
  5. Step 5: Solve for x
    x = 75,203,584/3,982
  6. Step 6: Final answer
    x = 18,885.88

Related Problems

Find third proportional to 1,991 and 4,336
Half scale
Find third proportional to 7,964 and 17,344
Double scale
Find third proportional to 3,984 and 8,676
Similar ratio
Find third proportional to 5,973 and 13,008
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.