Home / 9.45-13.04-6

Finding the Fourth Proportional to 9.45, 13.04 and 6

Calculator

Solution

The fourth proportional to 9.45, 13.04 and 6 is: 8.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.45 : 13.04 = 6 : x
  2. Step 2: Convert to fraction form
    9.45/13.04 = 6/x
  3. Step 3: Cross multiply
    9.45x = 13.04 × 6
  4. Step 4: Simplify right side
    9.45x = 78.21
  5. Step 5: Solve for x
    x = 78.21/9.45
  6. Step 6: Final answer
    x = 8.28

Related Problems

Find fourth proportional to 4.73, 6.52 and 3
Half scale
Find fourth proportional to 18.90, 26.07 and 12
Double scale
Find fourth proportional to 10.45, 14.41 and 7
Similar ratio
Find fourth proportional to 14.18, 19.55 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.