Home / 8.16-11.26-6

Finding the Fourth Proportional to 8.16, 11.26 and 6

Calculator

Solution

The fourth proportional to 8.16, 11.26 and 6 is: 8.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8.16 : 11.26 = 6 : x
  2. Step 2: Convert to fraction form
    8.16/11.26 = 6/x
  3. Step 3: Cross multiply
    8.16x = 11.26 × 6
  4. Step 4: Simplify right side
    8.16x = 67.53
  5. Step 5: Solve for x
    x = 67.53/8.16
  6. Step 6: Final answer
    x = 8.28

Related Problems

Find fourth proportional to 4.08, 5.63 and 3
Half scale
Find fourth proportional to 16.32, 22.51 and 12
Double scale
Find fourth proportional to 9.16, 12.63 and 7
Similar ratio
Find fourth proportional to 12.24, 16.88 and 9
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.