Home / 11,408-18,372

Finding the Third Proportional to 11,408 and 18,372

Calculator

Solution

The third proportional to 11,408 and 18,372 is: 29,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408 : 18,372 = 18,372 : x
  2. Step 2: Convert to fraction form
    11,408/18,372 = 18,372/x
  3. Step 3: Cross multiply
    11,408x = 18,372 × 18,372
  4. Step 4: Simplify right side
    11,408x = 337,530,384
  5. Step 5: Solve for x
    x = 337,530,384/11,408
  6. Step 6: Final answer
    x = 29,587.17

Related Problems

Find third proportional to 5,704 and 9,186
Half scale
Find third proportional to 22,816 and 36,744
Double scale
Find third proportional to 11,410 and 18,375
Similar ratio
Find third proportional to 17,112 and 27,558
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.