Home / 13,398-20,865

Finding the Third Proportional to 13,398 and 20,865

Calculator

Solution

The third proportional to 13,398 and 20,865 is: 32,493.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398 : 20,865 = 20,865 : x
  2. Step 2: Convert to fraction form
    13,398/20,865 = 20,865/x
  3. Step 3: Cross multiply
    13,398x = 20,865 × 20,865
  4. Step 4: Simplify right side
    13,398x = 435,348,225
  5. Step 5: Solve for x
    x = 435,348,225/13,398
  6. Step 6: Final answer
    x = 32,493.52

Related Problems

Find third proportional to 6,699 and 10,432.50
Half scale
Find third proportional to 26,796 and 41,730
Double scale
Find third proportional to 13,400 and 20,868
Similar ratio
Find third proportional to 20,097 and 31,297.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.