Home / 13,256-16,620

Finding the Third Proportional to 13,256 and 16,620

Calculator

Solution

The third proportional to 13,256 and 16,620 is: 20,837.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256 : 16,620 = 16,620 : x
  2. Step 2: Convert to fraction form
    13,256/16,620 = 16,620/x
  3. Step 3: Cross multiply
    13,256x = 16,620 × 16,620
  4. Step 4: Simplify right side
    13,256x = 276,224,400
  5. Step 5: Solve for x
    x = 276,224,400/13,256
  6. Step 6: Final answer
    x = 20,837.69

Related Problems

Find third proportional to 6,628 and 8,310
Half scale
Find third proportional to 26,512 and 33,240
Double scale
Find third proportional to 13,258 and 16,623
Similar ratio
Find third proportional to 19,884 and 24,930
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.