Home / 18.72-28.10-14.66

Finding the Fourth Proportional to 18.72, 28.10 and 14.66

Calculator

Solution

The fourth proportional to 18.72, 28.10 and 14.66 is: 22.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.72 : 28.10 = 14.66 : x
  2. Step 2: Convert to fraction form
    18.72/28.10 = 14.66/x
  3. Step 3: Cross multiply
    18.72x = 28.10 × 14.66
  4. Step 4: Simplify right side
    18.72x = 411.95
  5. Step 5: Solve for x
    x = 411.95/18.72
  6. Step 6: Final answer
    x = 22.01

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.