Home / 8,436-18,329

Finding the Third Proportional to 8,436 and 18,329

Calculator

Solution

The third proportional to 8,436 and 18,329 is: 39,823.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436 : 18,329 = 18,329 : x
  2. Step 2: Convert to fraction form
    8,436/18,329 = 18,329/x
  3. Step 3: Cross multiply
    8,436x = 18,329 × 18,329
  4. Step 4: Simplify right side
    8,436x = 335,952,241
  5. Step 5: Solve for x
    x = 335,952,241/8,436
  6. Step 6: Final answer
    x = 39,823.64

Related Problems

Find third proportional to 4,218 and 9,164.50
Half scale
Find third proportional to 16,872 and 36,658
Double scale
Find third proportional to 8,438 and 18,333
Similar ratio
Find third proportional to 12,654 and 27,493.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.