Home / 8,680-18,742

Finding the Third Proportional to 8,680 and 18,742

Calculator

Solution

The third proportional to 8,680 and 18,742 is: 40,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680 : 18,742 = 18,742 : x
  2. Step 2: Convert to fraction form
    8,680/18,742 = 18,742/x
  3. Step 3: Cross multiply
    8,680x = 18,742 × 18,742
  4. Step 4: Simplify right side
    8,680x = 351,262,564
  5. Step 5: Solve for x
    x = 351,262,564/8,680
  6. Step 6: Final answer
    x = 40,468.04

Related Problems

Find third proportional to 4,340 and 9,371
Half scale
Find third proportional to 17,360 and 37,484
Double scale
Find third proportional to 8,682 and 18,746
Similar ratio
Find third proportional to 13,020 and 28,113
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.