Home / 8,936-13,420

Finding the Third Proportional to 8,936 and 13,420

Calculator

Solution

The third proportional to 8,936 and 13,420 is: 20,154.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936 : 13,420 = 13,420 : x
  2. Step 2: Convert to fraction form
    8,936/13,420 = 13,420/x
  3. Step 3: Cross multiply
    8,936x = 13,420 × 13,420
  4. Step 4: Simplify right side
    8,936x = 180,096,400
  5. Step 5: Solve for x
    x = 180,096,400/8,936
  6. Step 6: Final answer
    x = 20,154.03

Related Problems

Find third proportional to 4,468 and 6,710
Half scale
Find third proportional to 17,872 and 26,840
Double scale
Find third proportional to 8,938 and 13,423
Similar ratio
Find third proportional to 13,404 and 20,130
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.