Home / 13.75-18.95-11.68

Finding the Fourth Proportional to 13.75, 18.95 and 11.68

Calculator

Solution

The fourth proportional to 13.75, 18.95 and 11.68 is: 16.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13.75 : 18.95 = 11.68 : x
  2. Step 2: Convert to fraction form
    13.75/18.95 = 11.68/x
  3. Step 3: Cross multiply
    13.75x = 18.95 × 11.68
  4. Step 4: Simplify right side
    13.75x = 221.23
  5. Step 5: Solve for x
    x = 221.23/13.75
  6. Step 6: Final answer
    x = 16.09

Related Problems

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.