Home / 5,211-10,728

Finding the Third Proportional to 5,211 and 10,728

Calculator

Solution

The third proportional to 5,211 and 10,728 is: 22,085.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211 : 10,728 = 10,728 : x
  2. Step 2: Convert to fraction form
    5,211/10,728 = 10,728/x
  3. Step 3: Cross multiply
    5,211x = 10,728 × 10,728
  4. Step 4: Simplify right side
    5,211x = 115,089,984
  5. Step 5: Solve for x
    x = 115,089,984/5,211
  6. Step 6: Final answer
    x = 22,085.97

Related Problems

Find third proportional to 2,605.50 and 5,364
Half scale
Find third proportional to 10,422 and 21,456
Double scale
Find third proportional to 5,213 and 10,732
Similar ratio
Find third proportional to 7,816.50 and 16,092
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.