Home / 6-7.84

Finding the Third Proportional to 6 and 7.84

Calculator

Solution

The third proportional to 6 and 7.84 is: 10.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6 : 7.84 = 7.84 : x
  2. Step 2: Convert to fraction form
    6/7.84 = 7.84/x
  3. Step 3: Cross multiply
    6x = 7.84 × 7.84
  4. Step 4: Simplify right side
    6x = 61.52
  5. Step 5: Solve for x
    x = 61.52/6
  6. Step 6: Final answer
    x = 10.25

Related Problems

Find third proportional to 3 and 3.92
Half scale
Find third proportional to 12 and 15.69
Double scale
Find third proportional to 8 and 10
Similar ratio
Find third proportional to 9 and 11.77
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.