Home / 5,398-8,157

Finding the Third Proportional to 5,398 and 8,157

Calculator

Solution

The third proportional to 5,398 and 8,157 is: 12,326.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398 : 8,157 = 8,157 : x
  2. Step 2: Convert to fraction form
    5,398/8,157 = 8,157/x
  3. Step 3: Cross multiply
    5,398x = 8,157 × 8,157
  4. Step 4: Simplify right side
    5,398x = 66,536,649
  5. Step 5: Solve for x
    x = 66,536,649/5,398
  6. Step 6: Final answer
    x = 12,326.17

Related Problems

Find third proportional to 2,699 and 4,078.50
Half scale
Find third proportional to 10,796 and 16,314
Double scale
Find third proportional to 5,400 and 8,160
Similar ratio
Find third proportional to 8,097 and 12,235.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.