Home / 6.50-9.76-6

Finding the Fourth Proportional to 6.50, 9.76 and 6

Calculator

Solution

The fourth proportional to 6.50, 9.76 and 6 is: 9.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.50 : 9.76 = 6 : x
  2. Step 2: Convert to fraction form
    6.50/9.76 = 6/x
  3. Step 3: Cross multiply
    6.50x = 9.76 × 6
  4. Step 4: Simplify right side
    6.50x = 58.56
  5. Step 5: Solve for x
    x = 58.56/6.50
  6. Step 6: Final answer
    x = 9.01

Related Problems

Find fourth proportional to 3.25, 4.88 and 3
Half scale
Find fourth proportional to 13, 19.52 and 12
Double scale
Find fourth proportional to 7.50, 11.26 and 7
Similar ratio
Find fourth proportional to 9.75, 14.64 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.