Home / 8.67-13.01-6

Finding the Fourth Proportional to 8.67, 13.01 and 6

Calculator

Solution

The fourth proportional to 8.67, 13.01 and 6 is: 9.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8.67 : 13.01 = 6 : x
  2. Step 2: Convert to fraction form
    8.67/13.01 = 6/x
  3. Step 3: Cross multiply
    8.67x = 13.01 × 6
  4. Step 4: Simplify right side
    8.67x = 78.08
  5. Step 5: Solve for x
    x = 78.08/8.67
  6. Step 6: Final answer
    x = 9.01

Related Problems

Find fourth proportional to 4.34, 6.51 and 3
Half scale
Find fourth proportional to 17.34, 26.03 and 12
Double scale
Find fourth proportional to 9.67, 14.51 and 7
Similar ratio
Find fourth proportional to 13.01, 19.52 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.