Home / 8,860-12,408

Finding the Third Proportional to 8,860 and 12,408

Calculator

Solution

The third proportional to 8,860 and 12,408 is: 17,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860 : 12,408 = 12,408 : x
  2. Step 2: Convert to fraction form
    8,860/12,408 = 12,408/x
  3. Step 3: Cross multiply
    8,860x = 12,408 × 12,408
  4. Step 4: Simplify right side
    8,860x = 153,958,464
  5. Step 5: Solve for x
    x = 153,958,464/8,860
  6. Step 6: Final answer
    x = 17,376.80

Related Problems

Find third proportional to 4,430 and 6,204
Half scale
Find third proportional to 17,720 and 24,816
Double scale
Find third proportional to 8,862 and 12,411
Similar ratio
Find third proportional to 13,290 and 18,612
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.