Home / 3,980-8,566

Finding the Third Proportional to 3,980 and 8,566

Calculator

Solution

The third proportional to 3,980 and 8,566 is: 18,436.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980 : 8,566 = 8,566 : x
  2. Step 2: Convert to fraction form
    3,980/8,566 = 8,566/x
  3. Step 3: Cross multiply
    3,980x = 8,566 × 8,566
  4. Step 4: Simplify right side
    3,980x = 73,376,356
  5. Step 5: Solve for x
    x = 73,376,356/3,980
  6. Step 6: Final answer
    x = 18,436.27

Related Problems

Find third proportional to 1,990 and 4,283
Half scale
Find third proportional to 7,960 and 17,132
Double scale
Find third proportional to 3,982 and 8,570
Similar ratio
Find third proportional to 5,970 and 12,849
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.