Home / 8,617-18,929

Finding the Third Proportional to 8,617 and 18,929

Calculator

Solution

The third proportional to 8,617 and 18,929 is: 41,581.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617 : 18,929 = 18,929 : x
  2. Step 2: Convert to fraction form
    8,617/18,929 = 18,929/x
  3. Step 3: Cross multiply
    8,617x = 18,929 × 18,929
  4. Step 4: Simplify right side
    8,617x = 358,307,041
  5. Step 5: Solve for x
    x = 358,307,041/8,617
  6. Step 6: Final answer
    x = 41,581.41

Related Problems

Find third proportional to 4,308.50 and 9,464.50
Half scale
Find third proportional to 17,234 and 37,858
Double scale
Find third proportional to 8,619 and 18,933
Similar ratio
Find third proportional to 12,925.50 and 28,393.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.