Home / 8,659-18,836

Finding the Third Proportional to 8,659 and 18,836

Calculator

Solution

The third proportional to 8,659 and 18,836 is: 40,974.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659 : 18,836 = 18,836 : x
  2. Step 2: Convert to fraction form
    8,659/18,836 = 18,836/x
  3. Step 3: Cross multiply
    8,659x = 18,836 × 18,836
  4. Step 4: Simplify right side
    8,659x = 354,794,896
  5. Step 5: Solve for x
    x = 354,794,896/8,659
  6. Step 6: Final answer
    x = 40,974.12

Related Problems

Find third proportional to 4,329.50 and 9,418
Half scale
Find third proportional to 17,318 and 37,672
Double scale
Find third proportional to 8,661 and 18,840
Similar ratio
Find third proportional to 12,988.50 and 28,254
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.