Home / 6,722-8,643

Finding the Third Proportional to 6,722 and 8,643

Calculator

Solution

The third proportional to 6,722 and 8,643 is: 11,112.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722 : 8,643 = 8,643 : x
  2. Step 2: Convert to fraction form
    6,722/8,643 = 8,643/x
  3. Step 3: Cross multiply
    6,722x = 8,643 × 8,643
  4. Step 4: Simplify right side
    6,722x = 74,701,449
  5. Step 5: Solve for x
    x = 74,701,449/6,722
  6. Step 6: Final answer
    x = 11,112.98

Related Problems

Find third proportional to 3,361 and 4,321.50
Half scale
Find third proportional to 13,444 and 17,286
Double scale
Find third proportional to 6,724 and 8,646
Similar ratio
Find third proportional to 10,083 and 12,964.50
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.