Home / 13,428-18,876

Finding the Third Proportional to 13,428 and 18,876

Calculator

Solution

The third proportional to 13,428 and 18,876 is: 26,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428 : 18,876 = 18,876 : x
  2. Step 2: Convert to fraction form
    13,428/18,876 = 18,876/x
  3. Step 3: Cross multiply
    13,428x = 18,876 × 18,876
  4. Step 4: Simplify right side
    13,428x = 356,303,376
  5. Step 5: Solve for x
    x = 356,303,376/13,428
  6. Step 6: Final answer
    x = 26,534.36

Related Problems

Find third proportional to 6,714 and 9,438
Half scale
Find third proportional to 26,856 and 37,752
Double scale
Find third proportional to 13,430 and 18,879
Similar ratio
Find third proportional to 20,142 and 28,314
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.