Home / 7.54-11.28-6

Finding the Fourth Proportional to 7.54, 11.28 and 6

Calculator

Solution

The fourth proportional to 7.54, 11.28 and 6 is: 8.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.54 : 11.28 = 6 : x
  2. Step 2: Convert to fraction form
    7.54/11.28 = 6/x
  3. Step 3: Cross multiply
    7.54x = 11.28 × 6
  4. Step 4: Simplify right side
    7.54x = 67.68
  5. Step 5: Solve for x
    x = 67.68/7.54
  6. Step 6: Final answer
    x = 8.98

Related Problems

Find fourth proportional to 3.77, 5.64 and 3
Half scale
Find fourth proportional to 15.08, 22.56 and 12
Double scale
Find fourth proportional to 8.54, 12.78 and 7
Similar ratio
Find fourth proportional to 11.31, 16.92 and 9
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.