Home / 26.50-39.76-12.25

Finding the Fourth Proportional to 26.50, 39.76 and 12.25

Calculator

Solution

The fourth proportional to 26.50, 39.76 and 12.25 is: 18.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.50 : 39.76 = 12.25 : x
  2. Step 2: Convert to fraction form
    26.50/39.76 = 12.25/x
  3. Step 3: Cross multiply
    26.50x = 39.76 × 12.25
  4. Step 4: Simplify right side
    26.50x = 487.06
  5. Step 5: Solve for x
    x = 487.06/26.50
  6. Step 6: Final answer
    x = 18.38

Related Problems

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.