Home / 8,580-12,761

Finding the Third Proportional to 8,580 and 12,761

Calculator

Solution

The third proportional to 8,580 and 12,761 is: 18,979.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580 : 12,761 = 12,761 : x
  2. Step 2: Convert to fraction form
    8,580/12,761 = 12,761/x
  3. Step 3: Cross multiply
    8,580x = 12,761 × 12,761
  4. Step 4: Simplify right side
    8,580x = 162,843,121
  5. Step 5: Solve for x
    x = 162,843,121/8,580
  6. Step 6: Final answer
    x = 18,979.38

Related Problems

Find third proportional to 4,290 and 6,380.50
Half scale
Find third proportional to 17,160 and 25,522
Double scale
Find third proportional to 8,582 and 12,764
Similar ratio
Find third proportional to 12,870 and 19,141.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.