Home / 7,786-17,860

Finding the Third Proportional to 7,786 and 17,860

Calculator

Solution

The third proportional to 7,786 and 17,860 is: 40,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786 : 17,860 = 17,860 : x
  2. Step 2: Convert to fraction form
    7,786/17,860 = 17,860/x
  3. Step 3: Cross multiply
    7,786x = 17,860 × 17,860
  4. Step 4: Simplify right side
    7,786x = 318,979,600
  5. Step 5: Solve for x
    x = 318,979,600/7,786
  6. Step 6: Final answer
    x = 40,968.35

Related Problems

Find third proportional to 3,893 and 8,930
Half scale
Find third proportional to 15,572 and 35,720
Double scale
Find third proportional to 7,788 and 17,865
Similar ratio
Find third proportional to 11,679 and 26,790
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.