Home / 13,500-18,378

Finding the Third Proportional to 13,500 and 18,378

Calculator

Solution

The third proportional to 13,500 and 18,378 is: 25,018.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500 : 18,378 = 18,378 : x
  2. Step 2: Convert to fraction form
    13,500/18,378 = 18,378/x
  3. Step 3: Cross multiply
    13,500x = 18,378 × 18,378
  4. Step 4: Simplify right side
    13,500x = 337,750,884
  5. Step 5: Solve for x
    x = 337,750,884/13,500
  6. Step 6: Final answer
    x = 25,018.58

Related Problems

Find third proportional to 6,750 and 9,189
Half scale
Find third proportional to 27,000 and 36,756
Double scale
Find third proportional to 13,502 and 18,381
Similar ratio
Find third proportional to 20,250 and 27,567
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.