Home / 11,115-15,876

Finding the Third Proportional to 11,115 and 15,876

Calculator

Solution

The third proportional to 11,115 and 15,876 is: 22,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115 : 15,876 = 15,876 : x
  2. Step 2: Convert to fraction form
    11,115/15,876 = 15,876/x
  3. Step 3: Cross multiply
    11,115x = 15,876 × 15,876
  4. Step 4: Simplify right side
    11,115x = 252,047,376
  5. Step 5: Solve for x
    x = 252,047,376/11,115
  6. Step 6: Final answer
    x = 22,676.33

Related Problems

Find third proportional to 5,557.50 and 7,938
Half scale
Find third proportional to 22,230 and 31,752
Double scale
Find third proportional to 11,117 and 15,879
Similar ratio
Find third proportional to 16,672.50 and 23,814
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.