Home / 11,782-18,789

Finding the Third Proportional to 11,782 and 18,789

Calculator

Solution

The third proportional to 11,782 and 18,789 is: 29,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,782 : 18,789 = 18,789 : x
  2. Step 2: Convert to fraction form
    11,782/18,789 = 18,789/x
  3. Step 3: Cross multiply
    11,782x = 18,789 × 18,789
  4. Step 4: Simplify right side
    11,782x = 353,026,521
  5. Step 5: Solve for x
    x = 353,026,521/11,782
  6. Step 6: Final answer
    x = 29,963.21

Related Problems

Find third proportional to 5,891 and 9,394.50
Half scale
Find third proportional to 23,564 and 37,578
Double scale
Find third proportional to 11,784 and 18,792
Similar ratio
Find third proportional to 17,673 and 28,183.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.