Home / 6,370-12,740

Finding the Third Proportional to 6,370 and 12,740

Calculator

Solution

The third proportional to 6,370 and 12,740 is: 25,480

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,370 : 12,740 = 12,740 : x
  2. Step 2: Convert to fraction form
    6,370/12,740 = 12,740/x
  3. Step 3: Cross multiply
    6,370x = 12,740 × 12,740
  4. Step 4: Simplify right side
    6,370x = 162,307,600
  5. Step 5: Solve for x
    x = 162,307,600/6,370
  6. Step 6: Final answer
    x = 25,480

Related Problems

Find third proportional to 3,185 and 6,370
Half scale
Find third proportional to 12,740 and 25,480
Double scale
Find third proportional to 6,372 and 12,744
Similar ratio
Find third proportional to 9,555 and 19,110
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.