Home / 15.50-23.25-6

Finding the Fourth Proportional to 15.50, 23.25 and 6

Calculator

Solution

The fourth proportional to 15.50, 23.25 and 6 is: 9

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.50 : 23.25 = 6 : x
  2. Step 2: Convert to fraction form
    15.50/23.25 = 6/x
  3. Step 3: Cross multiply
    15.50x = 23.25 × 6
  4. Step 4: Simplify right side
    15.50x = 139.50
  5. Step 5: Solve for x
    x = 139.50/15.50
  6. Step 6: Final answer
    x = 9

Related Problems

Find fourth proportional to 7.75, 11.63 and 3
Half scale
Find fourth proportional to 31, 46.50 and 12
Double scale
Find fourth proportional to 16.50, 24.75 and 7
Similar ratio
Find fourth proportional to 23.25, 34.88 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.