Home / 12,079-15,921

Finding the Third Proportional to 12,079 and 15,921

Calculator

Solution

The third proportional to 12,079 and 15,921 is: 20,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079 : 15,921 = 15,921 : x
  2. Step 2: Convert to fraction form
    12,079/15,921 = 15,921/x
  3. Step 3: Cross multiply
    12,079x = 15,921 × 15,921
  4. Step 4: Simplify right side
    12,079x = 253,478,241
  5. Step 5: Solve for x
    x = 253,478,241/12,079
  6. Step 6: Final answer
    x = 20,985.04

Related Problems

Find third proportional to 6,039.50 and 7,960.50
Half scale
Find third proportional to 24,158 and 31,842
Double scale
Find third proportional to 12,081 and 15,924
Similar ratio
Find third proportional to 18,118.50 and 23,881.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.