Home / 5,721-7,986

Finding the Third Proportional to 5,721 and 7,986

Calculator

Solution

The third proportional to 5,721 and 7,986 is: 11,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721 : 7,986 = 7,986 : x
  2. Step 2: Convert to fraction form
    5,721/7,986 = 7,986/x
  3. Step 3: Cross multiply
    5,721x = 7,986 × 7,986
  4. Step 4: Simplify right side
    5,721x = 63,776,196
  5. Step 5: Solve for x
    x = 63,776,196/5,721
  6. Step 6: Final answer
    x = 11,147.74

Related Problems

Find third proportional to 2,860.50 and 3,993
Half scale
Find third proportional to 11,442 and 15,972
Double scale
Find third proportional to 5,723 and 7,989
Similar ratio
Find third proportional to 8,581.50 and 11,979
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.