Home / 8,639-13,753

Finding the Third Proportional to 8,639 and 13,753

Calculator

Solution

The third proportional to 8,639 and 13,753 is: 21,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639 : 13,753 = 13,753 : x
  2. Step 2: Convert to fraction form
    8,639/13,753 = 13,753/x
  3. Step 3: Cross multiply
    8,639x = 13,753 × 13,753
  4. Step 4: Simplify right side
    8,639x = 189,145,009
  5. Step 5: Solve for x
    x = 189,145,009/8,639
  6. Step 6: Final answer
    x = 21,894.32

Related Problems

Find third proportional to 4,319.50 and 6,876.50
Half scale
Find third proportional to 17,278 and 27,506
Double scale
Find third proportional to 8,641 and 13,756
Similar ratio
Find third proportional to 12,958.50 and 20,629.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.