Home / 7,956-16,920

Finding the Third Proportional to 7,956 and 16,920

Calculator

Solution

The third proportional to 7,956 and 16,920 is: 35,983.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956 : 16,920 = 16,920 : x
  2. Step 2: Convert to fraction form
    7,956/16,920 = 16,920/x
  3. Step 3: Cross multiply
    7,956x = 16,920 × 16,920
  4. Step 4: Simplify right side
    7,956x = 286,286,400
  5. Step 5: Solve for x
    x = 286,286,400/7,956
  6. Step 6: Final answer
    x = 35,983.71

Related Problems

Find third proportional to 3,978 and 8,460
Half scale
Find third proportional to 15,912 and 33,840
Double scale
Find third proportional to 7,958 and 16,924
Similar ratio
Find third proportional to 11,934 and 25,380
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.