Home / 12,938-18,902

Finding the Third Proportional to 12,938 and 18,902

Calculator

Solution

The third proportional to 12,938 and 18,902 is: 27,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938 : 18,902 = 18,902 : x
  2. Step 2: Convert to fraction form
    12,938/18,902 = 18,902/x
  3. Step 3: Cross multiply
    12,938x = 18,902 × 18,902
  4. Step 4: Simplify right side
    12,938x = 357,285,604
  5. Step 5: Solve for x
    x = 357,285,604/12,938
  6. Step 6: Final answer
    x = 27,615.21

Related Problems

Find third proportional to 6,469 and 9,451
Half scale
Find third proportional to 25,876 and 37,804
Double scale
Find third proportional to 12,940 and 18,905
Similar ratio
Find third proportional to 19,407 and 28,353
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.