Home / 17-26

Finding the Third Proportional to 17 and 26

Calculator

Solution

The third proportional to 17 and 26 is: 39.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17 : 26 = 26 : x
  2. Step 2: Convert to fraction form
    17/26 = 26/x
  3. Step 3: Cross multiply
    17x = 26 × 26
  4. Step 4: Simplify right side
    17x = 676
  5. Step 5: Solve for x
    x = 676/17
  6. Step 6: Final answer
    x = 39.76

Related Problems

Find third proportional to 8.50 and 13
Half scale
Find third proportional to 34 and 52
Double scale
Find third proportional to 19 and 29
Similar ratio
Find third proportional to 25.50 and 39
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.