Home / 7,727-8,321

Finding the Third Proportional to 7,727 and 8,321

Calculator

Solution

The third proportional to 7,727 and 8,321 is: 8,960.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727 : 8,321 = 8,321 : x
  2. Step 2: Convert to fraction form
    7,727/8,321 = 8,321/x
  3. Step 3: Cross multiply
    7,727x = 8,321 × 8,321
  4. Step 4: Simplify right side
    7,727x = 69,239,041
  5. Step 5: Solve for x
    x = 69,239,041/7,727
  6. Step 6: Final answer
    x = 8,960.66

Related Problems

Find third proportional to 3,863.50 and 4,160.50
Half scale
Find third proportional to 15,454 and 16,642
Double scale
Find third proportional to 7,729 and 8,323
Similar ratio
Find third proportional to 11,590.50 and 12,481.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.