Home / 6,940-13,376

Finding the Third Proportional to 6,940 and 13,376

Calculator

Solution

The third proportional to 6,940 and 13,376 is: 25,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940 : 13,376 = 13,376 : x
  2. Step 2: Convert to fraction form
    6,940/13,376 = 13,376/x
  3. Step 3: Cross multiply
    6,940x = 13,376 × 13,376
  4. Step 4: Simplify right side
    6,940x = 178,917,376
  5. Step 5: Solve for x
    x = 178,917,376/6,940
  6. Step 6: Final answer
    x = 25,780.60

Related Problems

Find third proportional to 3,470 and 6,688
Half scale
Find third proportional to 13,880 and 26,752
Double scale
Find third proportional to 6,942 and 13,380
Similar ratio
Find third proportional to 10,410 and 20,064
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.