Home / 8,518-13,219

Finding the Third Proportional to 8,518 and 13,219

Calculator

Solution

The third proportional to 8,518 and 13,219 is: 20,514.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518 : 13,219 = 13,219 : x
  2. Step 2: Convert to fraction form
    8,518/13,219 = 13,219/x
  3. Step 3: Cross multiply
    8,518x = 13,219 × 13,219
  4. Step 4: Simplify right side
    8,518x = 174,741,961
  5. Step 5: Solve for x
    x = 174,741,961/8,518
  6. Step 6: Final answer
    x = 20,514.44

Related Problems

Find third proportional to 4,259 and 6,609.50
Half scale
Find third proportional to 17,036 and 26,438
Double scale
Find third proportional to 8,520 and 13,222
Similar ratio
Find third proportional to 12,777 and 19,828.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.