Home / 13.25-19.81-9.83

Finding the Fourth Proportional to 13.25, 19.81 and 9.83

Calculator

Solution

The fourth proportional to 13.25, 19.81 and 9.83 is: 14.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13.25 : 19.81 = 9.83 : x
  2. Step 2: Convert to fraction form
    13.25/19.81 = 9.83/x
  3. Step 3: Cross multiply
    13.25x = 19.81 × 9.83
  4. Step 4: Simplify right side
    13.25x = 194.73
  5. Step 5: Solve for x
    x = 194.73/13.25
  6. Step 6: Final answer
    x = 14.70

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.