Home / 18.06-27.05-12.03

Finding the Fourth Proportional to 18.06, 27.05 and 12.03

Calculator

Solution

The fourth proportional to 18.06, 27.05 and 12.03 is: 18.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.06 : 27.05 = 12.03 : x
  2. Step 2: Convert to fraction form
    18.06/27.05 = 12.03/x
  3. Step 3: Cross multiply
    18.06x = 27.05 × 12.03
  4. Step 4: Simplify right side
    18.06x = 325.47
  5. Step 5: Solve for x
    x = 325.47/18.06
  6. Step 6: Final answer
    x = 18.03

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.