Home / 12,086-18,489

Finding the Third Proportional to 12,086 and 18,489

Calculator

Solution

The third proportional to 12,086 and 18,489 is: 28,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086 : 18,489 = 18,489 : x
  2. Step 2: Convert to fraction form
    12,086/18,489 = 18,489/x
  3. Step 3: Cross multiply
    12,086x = 18,489 × 18,489
  4. Step 4: Simplify right side
    12,086x = 341,843,121
  5. Step 5: Solve for x
    x = 341,843,121/12,086
  6. Step 6: Final answer
    x = 28,284.22

Related Problems

Find third proportional to 6,043 and 9,244.50
Half scale
Find third proportional to 24,172 and 36,978
Double scale
Find third proportional to 12,088 and 18,492
Similar ratio
Find third proportional to 18,129 and 27,733.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.