Home / 11,720-15,267

Finding the Third Proportional to 11,720 and 15,267

Calculator

Solution

The third proportional to 11,720 and 15,267 is: 19,887.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720 : 15,267 = 15,267 : x
  2. Step 2: Convert to fraction form
    11,720/15,267 = 15,267/x
  3. Step 3: Cross multiply
    11,720x = 15,267 × 15,267
  4. Step 4: Simplify right side
    11,720x = 233,081,289
  5. Step 5: Solve for x
    x = 233,081,289/11,720
  6. Step 6: Final answer
    x = 19,887.48

Related Problems

Find third proportional to 5,860 and 7,633.50
Half scale
Find third proportional to 23,440 and 30,534
Double scale
Find third proportional to 11,722 and 15,270
Similar ratio
Find third proportional to 17,580 and 22,900.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.