Home / 7,708-17,686

Finding the Third Proportional to 7,708 and 17,686

Calculator

Solution

The third proportional to 7,708 and 17,686 is: 40,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708 : 17,686 = 17,686 : x
  2. Step 2: Convert to fraction form
    7,708/17,686 = 17,686/x
  3. Step 3: Cross multiply
    7,708x = 17,686 × 17,686
  4. Step 4: Simplify right side
    7,708x = 312,794,596
  5. Step 5: Solve for x
    x = 312,794,596/7,708
  6. Step 6: Final answer
    x = 40,580.51

Related Problems

Find third proportional to 3,854 and 8,843
Half scale
Find third proportional to 15,416 and 35,372
Double scale
Find third proportional to 7,710 and 17,691
Similar ratio
Find third proportional to 11,562 and 26,529
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.