Home / 6.16-8.51-6

Finding the Fourth Proportional to 6.16, 8.51 and 6

Calculator

Solution

The fourth proportional to 6.16, 8.51 and 6 is: 8.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.16 : 8.51 = 6 : x
  2. Step 2: Convert to fraction form
    6.16/8.51 = 6/x
  3. Step 3: Cross multiply
    6.16x = 8.51 × 6
  4. Step 4: Simplify right side
    6.16x = 51.06
  5. Step 5: Solve for x
    x = 51.06/6.16
  6. Step 6: Final answer
    x = 8.29

Related Problems

Find fourth proportional to 3.08, 4.26 and 3
Half scale
Find fourth proportional to 12.32, 17.02 and 12
Double scale
Find fourth proportional to 7.16, 9.89 and 7
Similar ratio
Find fourth proportional to 9.24, 12.77 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.