Home / 19-26.29-18.66

Finding the Fourth Proportional to 19, 26.29 and 18.66

Calculator

Solution

The fourth proportional to 19, 26.29 and 18.66 is: 25.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19 : 26.29 = 18.66 : x
  2. Step 2: Convert to fraction form
    19/26.29 = 18.66/x
  3. Step 3: Cross multiply
    19x = 26.29 × 18.66
  4. Step 4: Simplify right side
    19x = 490.57
  5. Step 5: Solve for x
    x = 490.57/19
  6. Step 6: Final answer
    x = 25.82

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.