Home / 10,620-18,936

Finding the Third Proportional to 10,620 and 18,936

Calculator

Solution

The third proportional to 10,620 and 18,936 is: 33,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620 : 18,936 = 18,936 : x
  2. Step 2: Convert to fraction form
    10,620/18,936 = 18,936/x
  3. Step 3: Cross multiply
    10,620x = 18,936 × 18,936
  4. Step 4: Simplify right side
    10,620x = 358,572,096
  5. Step 5: Solve for x
    x = 358,572,096/10,620
  6. Step 6: Final answer
    x = 33,763.85

Related Problems

Find third proportional to 5,310 and 9,468
Half scale
Find third proportional to 21,240 and 37,872
Double scale
Find third proportional to 10,622 and 18,940
Similar ratio
Find third proportional to 15,930 and 28,404
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.