Home / 12,918-19,416

Finding the Third Proportional to 12,918 and 19,416

Calculator

Solution

The third proportional to 12,918 and 19,416 is: 29,182.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918 : 19,416 = 19,416 : x
  2. Step 2: Convert to fraction form
    12,918/19,416 = 19,416/x
  3. Step 3: Cross multiply
    12,918x = 19,416 × 19,416
  4. Step 4: Simplify right side
    12,918x = 376,981,056
  5. Step 5: Solve for x
    x = 376,981,056/12,918
  6. Step 6: Final answer
    x = 29,182.62

Related Problems

Find third proportional to 6,459 and 9,708
Half scale
Find third proportional to 25,836 and 38,832
Double scale
Find third proportional to 12,920 and 19,419
Similar ratio
Find third proportional to 19,377 and 29,124
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.