Home / 8,256-16,920

Finding the Third Proportional to 8,256 and 16,920

Calculator

Solution

The third proportional to 8,256 and 16,920 is: 34,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256 : 16,920 = 16,920 : x
  2. Step 2: Convert to fraction form
    8,256/16,920 = 16,920/x
  3. Step 3: Cross multiply
    8,256x = 16,920 × 16,920
  4. Step 4: Simplify right side
    8,256x = 286,286,400
  5. Step 5: Solve for x
    x = 286,286,400/8,256
  6. Step 6: Final answer
    x = 34,676.16

Related Problems

Find third proportional to 4,128 and 8,460
Half scale
Find third proportional to 16,512 and 33,840
Double scale
Find third proportional to 8,258 and 16,924
Similar ratio
Find third proportional to 12,384 and 25,380
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.