Home / 8,880-13,320

Finding the Third Proportional to 8,880 and 13,320

Calculator

Solution

The third proportional to 8,880 and 13,320 is: 19,980

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880 : 13,320 = 13,320 : x
  2. Step 2: Convert to fraction form
    8,880/13,320 = 13,320/x
  3. Step 3: Cross multiply
    8,880x = 13,320 × 13,320
  4. Step 4: Simplify right side
    8,880x = 177,422,400
  5. Step 5: Solve for x
    x = 177,422,400/8,880
  6. Step 6: Final answer
    x = 19,980

Related Problems

Find third proportional to 4,440 and 6,660
Half scale
Find third proportional to 17,760 and 26,640
Double scale
Find third proportional to 8,882 and 13,323
Similar ratio
Find third proportional to 13,320 and 19,980
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.