Home / 8,690-18,950

Finding the Third Proportional to 8,690 and 18,950

Calculator

Solution

The third proportional to 8,690 and 18,950 is: 41,323.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690 : 18,950 = 18,950 : x
  2. Step 2: Convert to fraction form
    8,690/18,950 = 18,950/x
  3. Step 3: Cross multiply
    8,690x = 18,950 × 18,950
  4. Step 4: Simplify right side
    8,690x = 359,102,500
  5. Step 5: Solve for x
    x = 359,102,500/8,690
  6. Step 6: Final answer
    x = 41,323.65

Related Problems

Find third proportional to 4,345 and 9,475
Half scale
Find third proportional to 17,380 and 37,900
Double scale
Find third proportional to 8,692 and 18,954
Similar ratio
Find third proportional to 13,035 and 28,425
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.