Home / 15,714-18,018

Finding the Third Proportional to 15,714 and 18,018

Calculator

Solution

The third proportional to 15,714 and 18,018 is: 20,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,714 : 18,018 = 18,018 : x
  2. Step 2: Convert to fraction form
    15,714/18,018 = 18,018/x
  3. Step 3: Cross multiply
    15,714x = 18,018 × 18,018
  4. Step 4: Simplify right side
    15,714x = 324,648,324
  5. Step 5: Solve for x
    x = 324,648,324/15,714
  6. Step 6: Final answer
    x = 20,659.81

Related Problems

Find third proportional to 7,857 and 9,009
Half scale
Find third proportional to 31,428 and 36,036
Double scale
Find third proportional to 15,716 and 18,020
Similar ratio
Find third proportional to 23,571 and 27,027
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.