Home / 5,487-11,778

Finding the Third Proportional to 5,487 and 11,778

Calculator

Solution

The third proportional to 5,487 and 11,778 is: 25,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487 : 11,778 = 11,778 : x
  2. Step 2: Convert to fraction form
    5,487/11,778 = 11,778/x
  3. Step 3: Cross multiply
    5,487x = 11,778 × 11,778
  4. Step 4: Simplify right side
    5,487x = 138,721,284
  5. Step 5: Solve for x
    x = 138,721,284/5,487
  6. Step 6: Final answer
    x = 25,281.81

Related Problems

Find third proportional to 2,743.50 and 5,889
Half scale
Find third proportional to 10,974 and 23,556
Double scale
Find third proportional to 5,489 and 11,782
Similar ratio
Find third proportional to 8,230.50 and 17,667
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.