Home / 8,251-18,135

Finding the Third Proportional to 8,251 and 18,135

Calculator

Solution

The third proportional to 8,251 and 18,135 is: 39,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251 : 18,135 = 18,135 : x
  2. Step 2: Convert to fraction form
    8,251/18,135 = 18,135/x
  3. Step 3: Cross multiply
    8,251x = 18,135 × 18,135
  4. Step 4: Simplify right side
    8,251x = 328,878,225
  5. Step 5: Solve for x
    x = 328,878,225/8,251
  6. Step 6: Final answer
    x = 39,859.20

Related Problems

Find third proportional to 4,125.50 and 9,067.50
Half scale
Find third proportional to 16,502 and 36,270
Double scale
Find third proportional to 8,253 and 18,139
Similar ratio
Find third proportional to 12,376.50 and 27,202.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.