Home / 7,105-9,979

Finding the Third Proportional to 7,105 and 9,979

Calculator

Solution

The third proportional to 7,105 and 9,979 is: 14,015.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105 : 9,979 = 9,979 : x
  2. Step 2: Convert to fraction form
    7,105/9,979 = 9,979/x
  3. Step 3: Cross multiply
    7,105x = 9,979 × 9,979
  4. Step 4: Simplify right side
    7,105x = 99,580,441
  5. Step 5: Solve for x
    x = 99,580,441/7,105
  6. Step 6: Final answer
    x = 14,015.54

Related Problems

Find third proportional to 3,552.50 and 4,989.50
Half scale
Find third proportional to 14,210 and 19,958
Double scale
Find third proportional to 7,107 and 9,982
Similar ratio
Find third proportional to 10,657.50 and 14,968.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.