Home / 7,622-11,878

Finding the Third Proportional to 7,622 and 11,878

Calculator

Solution

The third proportional to 7,622 and 11,878 is: 18,510.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622 : 11,878 = 11,878 : x
  2. Step 2: Convert to fraction form
    7,622/11,878 = 11,878/x
  3. Step 3: Cross multiply
    7,622x = 11,878 × 11,878
  4. Step 4: Simplify right side
    7,622x = 141,086,884
  5. Step 5: Solve for x
    x = 141,086,884/7,622
  6. Step 6: Final answer
    x = 18,510.48

Related Problems

Find third proportional to 3,811 and 5,939
Half scale
Find third proportional to 15,244 and 23,756
Double scale
Find third proportional to 7,624 and 11,881
Similar ratio
Find third proportional to 11,433 and 17,817
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.