Home / 12,728-18,760

Finding the Third Proportional to 12,728 and 18,760

Calculator

Solution

The third proportional to 12,728 and 18,760 is: 27,650.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728 : 18,760 = 18,760 : x
  2. Step 2: Convert to fraction form
    12,728/18,760 = 18,760/x
  3. Step 3: Cross multiply
    12,728x = 18,760 × 18,760
  4. Step 4: Simplify right side
    12,728x = 351,937,600
  5. Step 5: Solve for x
    x = 351,937,600/12,728
  6. Step 6: Final answer
    x = 27,650.66

Related Problems

Find third proportional to 6,364 and 9,380
Half scale
Find third proportional to 25,456 and 37,520
Double scale
Find third proportional to 12,730 and 18,763
Similar ratio
Find third proportional to 19,092 and 28,140
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.