Home / 5,398-11,280

Finding the Third Proportional to 5,398 and 11,280

Calculator

Solution

The third proportional to 5,398 and 11,280 is: 23,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398 : 11,280 = 11,280 : x
  2. Step 2: Convert to fraction form
    5,398/11,280 = 11,280/x
  3. Step 3: Cross multiply
    5,398x = 11,280 × 11,280
  4. Step 4: Simplify right side
    5,398x = 127,238,400
  5. Step 5: Solve for x
    x = 127,238,400/5,398
  6. Step 6: Final answer
    x = 23,571.40

Related Problems

Find third proportional to 2,699 and 5,640
Half scale
Find third proportional to 10,796 and 22,560
Double scale
Find third proportional to 5,400 and 11,284
Similar ratio
Find third proportional to 8,097 and 16,920
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.