Home / 8,736-18,644

Finding the Third Proportional to 8,736 and 18,644

Calculator

Solution

The third proportional to 8,736 and 18,644 is: 39,789.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736 : 18,644 = 18,644 : x
  2. Step 2: Convert to fraction form
    8,736/18,644 = 18,644/x
  3. Step 3: Cross multiply
    8,736x = 18,644 × 18,644
  4. Step 4: Simplify right side
    8,736x = 347,598,736
  5. Step 5: Solve for x
    x = 347,598,736/8,736
  6. Step 6: Final answer
    x = 39,789.23

Related Problems

Find third proportional to 4,368 and 9,322
Half scale
Find third proportional to 17,472 and 37,288
Double scale
Find third proportional to 8,738 and 18,648
Similar ratio
Find third proportional to 13,104 and 27,966
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.