Home / 7,928-12,200

Finding the Third Proportional to 7,928 and 12,200

Calculator

Solution

The third proportional to 7,928 and 12,200 is: 18,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928 : 12,200 = 12,200 : x
  2. Step 2: Convert to fraction form
    7,928/12,200 = 12,200/x
  3. Step 3: Cross multiply
    7,928x = 12,200 × 12,200
  4. Step 4: Simplify right side
    7,928x = 148,840,000
  5. Step 5: Solve for x
    x = 148,840,000/7,928
  6. Step 6: Final answer
    x = 18,773.97

Related Problems

Find third proportional to 3,964 and 6,100
Half scale
Find third proportional to 15,856 and 24,400
Double scale
Find third proportional to 7,930 and 12,203
Similar ratio
Find third proportional to 11,892 and 18,300
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.