Home / 8,718-18,228

Finding the Third Proportional to 8,718 and 18,228

Calculator

Solution

The third proportional to 8,718 and 18,228 is: 38,111.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718 : 18,228 = 18,228 : x
  2. Step 2: Convert to fraction form
    8,718/18,228 = 18,228/x
  3. Step 3: Cross multiply
    8,718x = 18,228 × 18,228
  4. Step 4: Simplify right side
    8,718x = 332,259,984
  5. Step 5: Solve for x
    x = 332,259,984/8,718
  6. Step 6: Final answer
    x = 38,111.95

Related Problems

Find third proportional to 4,359 and 9,114
Half scale
Find third proportional to 17,436 and 36,456
Double scale
Find third proportional to 8,720 and 18,232
Similar ratio
Find third proportional to 13,077 and 27,342
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.