Home / 8,406-18,243

Finding the Third Proportional to 8,406 and 18,243

Calculator

Solution

The third proportional to 8,406 and 18,243 is: 39,591.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,406 : 18,243 = 18,243 : x
  2. Step 2: Convert to fraction form
    8,406/18,243 = 18,243/x
  3. Step 3: Cross multiply
    8,406x = 18,243 × 18,243
  4. Step 4: Simplify right side
    8,406x = 332,807,049
  5. Step 5: Solve for x
    x = 332,807,049/8,406
  6. Step 6: Final answer
    x = 39,591.61

Related Problems

Find third proportional to 4,203 and 9,121.50
Half scale
Find third proportional to 16,812 and 36,486
Double scale
Find third proportional to 8,408 and 18,247
Similar ratio
Find third proportional to 12,609 and 27,364.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.