Home / 8,831-18,715

Finding the Third Proportional to 8,831 and 18,715

Calculator

Solution

The third proportional to 8,831 and 18,715 is: 39,661.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831 : 18,715 = 18,715 : x
  2. Step 2: Convert to fraction form
    8,831/18,715 = 18,715/x
  3. Step 3: Cross multiply
    8,831x = 18,715 × 18,715
  4. Step 4: Simplify right side
    8,831x = 350,251,225
  5. Step 5: Solve for x
    x = 350,251,225/8,831
  6. Step 6: Final answer
    x = 39,661.56

Related Problems

Find third proportional to 4,415.50 and 9,357.50
Half scale
Find third proportional to 17,662 and 37,430
Double scale
Find third proportional to 8,833 and 18,719
Similar ratio
Find third proportional to 13,246.50 and 28,072.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.