Home / 11,980-15,498

Finding the Third Proportional to 11,980 and 15,498

Calculator

Solution

The third proportional to 11,980 and 15,498 is: 20,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980 : 15,498 = 15,498 : x
  2. Step 2: Convert to fraction form
    11,980/15,498 = 15,498/x
  3. Step 3: Cross multiply
    11,980x = 15,498 × 15,498
  4. Step 4: Simplify right side
    11,980x = 240,188,004
  5. Step 5: Solve for x
    x = 240,188,004/11,980
  6. Step 6: Final answer
    x = 20,049.08

Related Problems

Find third proportional to 5,990 and 7,749
Half scale
Find third proportional to 23,960 and 30,996
Double scale
Find third proportional to 11,982 and 15,501
Similar ratio
Find third proportional to 17,970 and 23,247
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.