Home / 13,338-19,890

Finding the Third Proportional to 13,338 and 19,890

Calculator

Solution

The third proportional to 13,338 and 19,890 is: 29,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338 : 19,890 = 19,890 : x
  2. Step 2: Convert to fraction form
    13,338/19,890 = 19,890/x
  3. Step 3: Cross multiply
    13,338x = 19,890 × 19,890
  4. Step 4: Simplify right side
    13,338x = 395,612,100
  5. Step 5: Solve for x
    x = 395,612,100/13,338
  6. Step 6: Final answer
    x = 29,660.53

Related Problems

Find third proportional to 6,669 and 9,945
Half scale
Find third proportional to 26,676 and 39,780
Double scale
Find third proportional to 13,340 and 19,893
Similar ratio
Find third proportional to 20,007 and 29,835
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.