Home / 7,944-12,740

Finding the Third Proportional to 7,944 and 12,740

Calculator

Solution

The third proportional to 7,944 and 12,740 is: 20,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944 : 12,740 = 12,740 : x
  2. Step 2: Convert to fraction form
    7,944/12,740 = 12,740/x
  3. Step 3: Cross multiply
    7,944x = 12,740 × 12,740
  4. Step 4: Simplify right side
    7,944x = 162,307,600
  5. Step 5: Solve for x
    x = 162,307,600/7,944
  6. Step 6: Final answer
    x = 20,431.47

Related Problems

Find third proportional to 3,972 and 6,370
Half scale
Find third proportional to 15,888 and 25,480
Double scale
Find third proportional to 7,946 and 12,743
Similar ratio
Find third proportional to 11,916 and 19,110
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.