Home / 13,780-18,762

Finding the Third Proportional to 13,780 and 18,762

Calculator

Solution

The third proportional to 13,780 and 18,762 is: 25,545.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780 : 18,762 = 18,762 : x
  2. Step 2: Convert to fraction form
    13,780/18,762 = 18,762/x
  3. Step 3: Cross multiply
    13,780x = 18,762 × 18,762
  4. Step 4: Simplify right side
    13,780x = 352,012,644
  5. Step 5: Solve for x
    x = 352,012,644/13,780
  6. Step 6: Final answer
    x = 25,545.18

Related Problems

Find third proportional to 6,890 and 9,381
Half scale
Find third proportional to 27,560 and 37,524
Double scale
Find third proportional to 13,782 and 18,765
Similar ratio
Find third proportional to 20,670 and 28,143
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.