Home / 8,495-13,209

Finding the Third Proportional to 8,495 and 13,209

Calculator

Solution

The third proportional to 8,495 and 13,209 is: 20,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495 : 13,209 = 13,209 : x
  2. Step 2: Convert to fraction form
    8,495/13,209 = 13,209/x
  3. Step 3: Cross multiply
    8,495x = 13,209 × 13,209
  4. Step 4: Simplify right side
    8,495x = 174,477,681
  5. Step 5: Solve for x
    x = 174,477,681/8,495
  6. Step 6: Final answer
    x = 20,538.87

Related Problems

Find third proportional to 4,247.50 and 6,604.50
Half scale
Find third proportional to 16,990 and 26,418
Double scale
Find third proportional to 8,497 and 13,212
Similar ratio
Find third proportional to 12,742.50 and 19,813.50
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.