Home / 7,821-17,018

Finding the Third Proportional to 7,821 and 17,018

Calculator

Solution

The third proportional to 7,821 and 17,018 is: 37,030.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821 : 17,018 = 17,018 : x
  2. Step 2: Convert to fraction form
    7,821/17,018 = 17,018/x
  3. Step 3: Cross multiply
    7,821x = 17,018 × 17,018
  4. Step 4: Simplify right side
    7,821x = 289,612,324
  5. Step 5: Solve for x
    x = 289,612,324/7,821
  6. Step 6: Final answer
    x = 37,030.09

Related Problems

Find third proportional to 3,910.50 and 8,509
Half scale
Find third proportional to 15,642 and 34,036
Double scale
Find third proportional to 7,823 and 17,022
Similar ratio
Find third proportional to 11,731.50 and 25,527
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.