Home / 9,399-20,418

Finding the Third Proportional to 9,399 and 20,418

Calculator

Solution

The third proportional to 9,399 and 20,418 is: 44,355.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,399 : 20,418 = 20,418 : x
  2. Step 2: Convert to fraction form
    9,399/20,418 = 20,418/x
  3. Step 3: Cross multiply
    9,399x = 20,418 × 20,418
  4. Step 4: Simplify right side
    9,399x = 416,894,724
  5. Step 5: Solve for x
    x = 416,894,724/9,399
  6. Step 6: Final answer
    x = 44,355.22

Related Problems

Find third proportional to 4,699.50 and 10,209
Half scale
Find third proportional to 18,798 and 40,836
Double scale
Find third proportional to 9,401 and 20,422
Similar ratio
Find third proportional to 14,098.50 and 30,627
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.