Home / 8,385-18,381

Finding the Third Proportional to 8,385 and 18,381

Calculator

Solution

The third proportional to 8,385 and 18,381 is: 40,293.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385 : 18,381 = 18,381 : x
  2. Step 2: Convert to fraction form
    8,385/18,381 = 18,381/x
  3. Step 3: Cross multiply
    8,385x = 18,381 × 18,381
  4. Step 4: Simplify right side
    8,385x = 337,861,161
  5. Step 5: Solve for x
    x = 337,861,161/8,385
  6. Step 6: Final answer
    x = 40,293.52

Related Problems

Find third proportional to 4,192.50 and 9,190.50
Half scale
Find third proportional to 16,770 and 36,762
Double scale
Find third proportional to 8,387 and 18,385
Similar ratio
Find third proportional to 12,577.50 and 27,571.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.