Home / 15,860-18,740

Finding the Third Proportional to 15,860 and 18,740

Calculator

Solution

The third proportional to 15,860 and 18,740 is: 22,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,860 : 18,740 = 18,740 : x
  2. Step 2: Convert to fraction form
    15,860/18,740 = 18,740/x
  3. Step 3: Cross multiply
    15,860x = 18,740 × 18,740
  4. Step 4: Simplify right side
    15,860x = 351,187,600
  5. Step 5: Solve for x
    x = 351,187,600/15,860
  6. Step 6: Final answer
    x = 22,142.98

Related Problems

Find third proportional to 7,930 and 9,370
Half scale
Find third proportional to 31,720 and 37,480
Double scale
Find third proportional to 15,862 and 18,742
Similar ratio
Find third proportional to 23,790 and 28,110
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.