Home / 6,750-15,990

Finding the Third Proportional to 6,750 and 15,990

Calculator

Solution

The third proportional to 6,750 and 15,990 is: 37,878.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750 : 15,990 = 15,990 : x
  2. Step 2: Convert to fraction form
    6,750/15,990 = 15,990/x
  3. Step 3: Cross multiply
    6,750x = 15,990 × 15,990
  4. Step 4: Simplify right side
    6,750x = 255,680,100
  5. Step 5: Solve for x
    x = 255,680,100/6,750
  6. Step 6: Final answer
    x = 37,878.53

Related Problems

Find third proportional to 3,375 and 7,995
Half scale
Find third proportional to 13,500 and 31,980
Double scale
Find third proportional to 6,752 and 15,995
Similar ratio
Find third proportional to 10,125 and 23,985
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.