Home / 13,438-18,555

Finding the Third Proportional to 13,438 and 18,555

Calculator

Solution

The third proportional to 13,438 and 18,555 is: 25,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438 : 18,555 = 18,555 : x
  2. Step 2: Convert to fraction form
    13,438/18,555 = 18,555/x
  3. Step 3: Cross multiply
    13,438x = 18,555 × 18,555
  4. Step 4: Simplify right side
    13,438x = 344,288,025
  5. Step 5: Solve for x
    x = 344,288,025/13,438
  6. Step 6: Final answer
    x = 25,620.48

Related Problems

Find third proportional to 6,719 and 9,277.50
Half scale
Find third proportional to 26,876 and 37,110
Double scale
Find third proportional to 13,440 and 18,558
Similar ratio
Find third proportional to 20,157 and 27,832.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.