Home / 8,757-12,759

Finding the Third Proportional to 8,757 and 12,759

Calculator

Solution

The third proportional to 8,757 and 12,759 is: 18,589.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757 : 12,759 = 12,759 : x
  2. Step 2: Convert to fraction form
    8,757/12,759 = 12,759/x
  3. Step 3: Cross multiply
    8,757x = 12,759 × 12,759
  4. Step 4: Simplify right side
    8,757x = 162,792,081
  5. Step 5: Solve for x
    x = 162,792,081/8,757
  6. Step 6: Final answer
    x = 18,589.94

Related Problems

Find third proportional to 4,378.50 and 6,379.50
Half scale
Find third proportional to 17,514 and 25,518
Double scale
Find third proportional to 8,759 and 12,762
Similar ratio
Find third proportional to 13,135.50 and 19,138.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.