Home / 12,506-20,847

Finding the Third Proportional to 12,506 and 20,847

Calculator

Solution

The third proportional to 12,506 and 20,847 is: 34,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506 : 20,847 = 20,847 : x
  2. Step 2: Convert to fraction form
    12,506/20,847 = 20,847/x
  3. Step 3: Cross multiply
    12,506x = 20,847 × 20,847
  4. Step 4: Simplify right side
    12,506x = 434,597,409
  5. Step 5: Solve for x
    x = 434,597,409/12,506
  6. Step 6: Final answer
    x = 34,751.11

Related Problems

Find third proportional to 6,253 and 10,423.50
Half scale
Find third proportional to 25,012 and 41,694
Double scale
Find third proportional to 12,508 and 20,850
Similar ratio
Find third proportional to 18,759 and 31,270.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.