Home / 8,622-18,321

Finding the Third Proportional to 8,622 and 18,321

Calculator

Solution

The third proportional to 8,622 and 18,321 is: 38,930.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622 : 18,321 = 18,321 : x
  2. Step 2: Convert to fraction form
    8,622/18,321 = 18,321/x
  3. Step 3: Cross multiply
    8,622x = 18,321 × 18,321
  4. Step 4: Simplify right side
    8,622x = 335,659,041
  5. Step 5: Solve for x
    x = 335,659,041/8,622
  6. Step 6: Final answer
    x = 38,930.53

Related Problems

Find third proportional to 4,311 and 9,160.50
Half scale
Find third proportional to 17,244 and 36,642
Double scale
Find third proportional to 8,624 and 18,325
Similar ratio
Find third proportional to 12,933 and 27,481.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.