Home / 9,960-21,912

Finding the Third Proportional to 9,960 and 21,912

Calculator

Solution

The third proportional to 9,960 and 21,912 is: 48,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,960 : 21,912 = 21,912 : x
  2. Step 2: Convert to fraction form
    9,960/21,912 = 21,912/x
  3. Step 3: Cross multiply
    9,960x = 21,912 × 21,912
  4. Step 4: Simplify right side
    9,960x = 480,135,744
  5. Step 5: Solve for x
    x = 480,135,744/9,960
  6. Step 6: Final answer
    x = 48,206.40

Related Problems

Find third proportional to 4,980 and 10,956
Half scale
Find third proportional to 19,920 and 43,824
Double scale
Find third proportional to 9,962 and 21,916
Similar ratio
Find third proportional to 14,940 and 32,868
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.