Home / 9.25-13.87-6

Finding the Fourth Proportional to 9.25, 13.87 and 6

Calculator

Solution

The fourth proportional to 9.25, 13.87 and 6 is: 9.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.25 : 13.87 = 6 : x
  2. Step 2: Convert to fraction form
    9.25/13.87 = 6/x
  3. Step 3: Cross multiply
    9.25x = 13.87 × 6
  4. Step 4: Simplify right side
    9.25x = 83.22
  5. Step 5: Solve for x
    x = 83.22/9.25
  6. Step 6: Final answer
    x = 9.00

Related Problems

Find fourth proportional to 4.63, 6.94 and 3
Half scale
Find fourth proportional to 18.50, 27.74 and 12
Double scale
Find fourth proportional to 10.25, 15.37 and 7
Similar ratio
Find fourth proportional to 13.88, 20.81 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.