Home / 18.84-28.27-6

Finding the Fourth Proportional to 18.84, 28.27 and 6

Calculator

Solution

The fourth proportional to 18.84, 28.27 and 6 is: 9.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.84 : 28.27 = 6 : x
  2. Step 2: Convert to fraction form
    18.84/28.27 = 6/x
  3. Step 3: Cross multiply
    18.84x = 28.27 × 6
  4. Step 4: Simplify right side
    18.84x = 169.59
  5. Step 5: Solve for x
    x = 169.59/18.84
  6. Step 6: Final answer
    x = 9.00

Related Problems

Find fourth proportional to 9.42, 14.13 and 3
Half scale
Find fourth proportional to 37.68, 56.53 and 12
Double scale
Find fourth proportional to 19.84, 29.77 and 7
Similar ratio
Find fourth proportional to 28.26, 42.40 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.