Home / 17,098-18,515

Finding the Third Proportional to 17,098 and 18,515

Calculator

Solution

The third proportional to 17,098 and 18,515 is: 20,049.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,098 : 18,515 = 18,515 : x
  2. Step 2: Convert to fraction form
    17,098/18,515 = 18,515/x
  3. Step 3: Cross multiply
    17,098x = 18,515 × 18,515
  4. Step 4: Simplify right side
    17,098x = 342,805,225
  5. Step 5: Solve for x
    x = 342,805,225/17,098
  6. Step 6: Final answer
    x = 20,049.43

Related Problems

Find third proportional to 8,549 and 9,257.50
Half scale
Find third proportional to 34,196 and 37,030
Double scale
Find third proportional to 17,100 and 18,517
Similar ratio
Find third proportional to 25,647 and 27,772.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.