Home / 8,403-18,270

Finding the Third Proportional to 8,403 and 18,270

Calculator

Solution

The third proportional to 8,403 and 18,270 is: 39,723.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403 : 18,270 = 18,270 : x
  2. Step 2: Convert to fraction form
    8,403/18,270 = 18,270/x
  3. Step 3: Cross multiply
    8,403x = 18,270 × 18,270
  4. Step 4: Simplify right side
    8,403x = 333,792,900
  5. Step 5: Solve for x
    x = 333,792,900/8,403
  6. Step 6: Final answer
    x = 39,723.06

Related Problems

Find third proportional to 4,201.50 and 9,135
Half scale
Find third proportional to 16,806 and 36,540
Double scale
Find third proportional to 8,405 and 18,274
Similar ratio
Find third proportional to 12,604.50 and 27,405
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.