Home / 8,910-18,018

Finding the Third Proportional to 8,910 and 18,018

Calculator

Solution

The third proportional to 8,910 and 18,018 is: 36,436.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910 : 18,018 = 18,018 : x
  2. Step 2: Convert to fraction form
    8,910/18,018 = 18,018/x
  3. Step 3: Cross multiply
    8,910x = 18,018 × 18,018
  4. Step 4: Simplify right side
    8,910x = 324,648,324
  5. Step 5: Solve for x
    x = 324,648,324/8,910
  6. Step 6: Final answer
    x = 36,436.40

Related Problems

Find third proportional to 4,455 and 9,009
Half scale
Find third proportional to 17,820 and 36,036
Double scale
Find third proportional to 8,912 and 18,022
Similar ratio
Find third proportional to 13,365 and 27,027
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.