Home / 15,898-18,778

Finding the Third Proportional to 15,898 and 18,778

Calculator

Solution

The third proportional to 15,898 and 18,778 is: 22,179.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898 : 18,778 = 18,778 : x
  2. Step 2: Convert to fraction form
    15,898/18,778 = 18,778/x
  3. Step 3: Cross multiply
    15,898x = 18,778 × 18,778
  4. Step 4: Simplify right side
    15,898x = 352,613,284
  5. Step 5: Solve for x
    x = 352,613,284/15,898
  6. Step 6: Final answer
    x = 22,179.73

Related Problems

Find third proportional to 7,949 and 9,389
Half scale
Find third proportional to 31,796 and 37,556
Double scale
Find third proportional to 15,900 and 18,780
Similar ratio
Find third proportional to 23,847 and 28,167
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.