Home / 8,575-18,821

Finding the Third Proportional to 8,575 and 18,821

Calculator

Solution

The third proportional to 8,575 and 18,821 is: 41,309.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575 : 18,821 = 18,821 : x
  2. Step 2: Convert to fraction form
    8,575/18,821 = 18,821/x
  3. Step 3: Cross multiply
    8,575x = 18,821 × 18,821
  4. Step 4: Simplify right side
    8,575x = 354,230,041
  5. Step 5: Solve for x
    x = 354,230,041/8,575
  6. Step 6: Final answer
    x = 41,309.63

Related Problems

Find third proportional to 4,287.50 and 9,410.50
Half scale
Find third proportional to 17,150 and 37,642
Double scale
Find third proportional to 8,577 and 18,825
Similar ratio
Find third proportional to 12,862.50 and 28,231.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.