Home / 3,506-8,128

Finding the Third Proportional to 3,506 and 8,128

Calculator

Solution

The third proportional to 3,506 and 8,128 is: 18,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506 : 8,128 = 8,128 : x
  2. Step 2: Convert to fraction form
    3,506/8,128 = 8,128/x
  3. Step 3: Cross multiply
    3,506x = 8,128 × 8,128
  4. Step 4: Simplify right side
    3,506x = 66,064,384
  5. Step 5: Solve for x
    x = 66,064,384/3,506
  6. Step 6: Final answer
    x = 18,843.24

Related Problems

Find third proportional to 1,753 and 4,064
Half scale
Find third proportional to 7,012 and 16,256
Double scale
Find third proportional to 3,508 and 8,133
Similar ratio
Find third proportional to 5,259 and 12,192
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.