Home / 11,712-18,336

Finding the Third Proportional to 11,712 and 18,336

Calculator

Solution

The third proportional to 11,712 and 18,336 is: 28,706.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712 : 18,336 = 18,336 : x
  2. Step 2: Convert to fraction form
    11,712/18,336 = 18,336/x
  3. Step 3: Cross multiply
    11,712x = 18,336 × 18,336
  4. Step 4: Simplify right side
    11,712x = 336,208,896
  5. Step 5: Solve for x
    x = 336,208,896/11,712
  6. Step 6: Final answer
    x = 28,706.36

Related Problems

Find third proportional to 5,856 and 9,168
Half scale
Find third proportional to 23,424 and 36,672
Double scale
Find third proportional to 11,714 and 18,339
Similar ratio
Find third proportional to 17,568 and 27,504
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.