Home / 8,908-18,212

Finding the Third Proportional to 8,908 and 18,212

Calculator

Solution

The third proportional to 8,908 and 18,212 is: 37,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908 : 18,212 = 18,212 : x
  2. Step 2: Convert to fraction form
    8,908/18,212 = 18,212/x
  3. Step 3: Cross multiply
    8,908x = 18,212 × 18,212
  4. Step 4: Simplify right side
    8,908x = 331,676,944
  5. Step 5: Solve for x
    x = 331,676,944/8,908
  6. Step 6: Final answer
    x = 37,233.60

Related Problems

Find third proportional to 4,454 and 9,106
Half scale
Find third proportional to 17,816 and 36,424
Double scale
Find third proportional to 8,910 and 18,216
Similar ratio
Find third proportional to 13,362 and 27,318
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.