Home / 7,939-11,679

Finding the Third Proportional to 7,939 and 11,679

Calculator

Solution

The third proportional to 7,939 and 11,679 is: 17,180.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939 : 11,679 = 11,679 : x
  2. Step 2: Convert to fraction form
    7,939/11,679 = 11,679/x
  3. Step 3: Cross multiply
    7,939x = 11,679 × 11,679
  4. Step 4: Simplify right side
    7,939x = 136,399,041
  5. Step 5: Solve for x
    x = 136,399,041/7,939
  6. Step 6: Final answer
    x = 17,180.88

Related Problems

Find third proportional to 3,969.50 and 5,839.50
Half scale
Find third proportional to 15,878 and 23,358
Double scale
Find third proportional to 7,941 and 11,682
Similar ratio
Find third proportional to 11,908.50 and 17,518.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.