Home / 7,750-11,995

Finding the Third Proportional to 7,750 and 11,995

Calculator

Solution

The third proportional to 7,750 and 11,995 is: 18,565.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750 : 11,995 = 11,995 : x
  2. Step 2: Convert to fraction form
    7,750/11,995 = 11,995/x
  3. Step 3: Cross multiply
    7,750x = 11,995 × 11,995
  4. Step 4: Simplify right side
    7,750x = 143,880,025
  5. Step 5: Solve for x
    x = 143,880,025/7,750
  6. Step 6: Final answer
    x = 18,565.16

Related Problems

Find third proportional to 3,875 and 5,997.50
Half scale
Find third proportional to 15,500 and 23,990
Double scale
Find third proportional to 7,752 and 11,998
Similar ratio
Find third proportional to 11,625 and 17,992.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.