Home / 13,020-15,876

Finding the Third Proportional to 13,020 and 15,876

Calculator

Solution

The third proportional to 13,020 and 15,876 is: 19,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020 : 15,876 = 15,876 : x
  2. Step 2: Convert to fraction form
    13,020/15,876 = 15,876/x
  3. Step 3: Cross multiply
    13,020x = 15,876 × 15,876
  4. Step 4: Simplify right side
    13,020x = 252,047,376
  5. Step 5: Solve for x
    x = 252,047,376/13,020
  6. Step 6: Final answer
    x = 19,358.48

Related Problems

Find third proportional to 6,510 and 7,938
Half scale
Find third proportional to 26,040 and 31,752
Double scale
Find third proportional to 13,022 and 15,878
Similar ratio
Find third proportional to 19,530 and 23,814
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.