Home / 13.73-18.83-13.64

Finding the Fourth Proportional to 13.73, 18.83 and 13.64

Calculator

Solution

The fourth proportional to 13.73, 18.83 and 13.64 is: 18.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13.73 : 18.83 = 13.64 : x
  2. Step 2: Convert to fraction form
    13.73/18.83 = 13.64/x
  3. Step 3: Cross multiply
    13.73x = 18.83 × 13.64
  4. Step 4: Simplify right side
    13.73x = 256.78
  5. Step 5: Solve for x
    x = 256.78/13.73
  6. Step 6: Final answer
    x = 18.71

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.