Home / 12.36-17.06-9.12

Finding the Fourth Proportional to 12.36, 17.06 and 9.12

Calculator

Solution

The fourth proportional to 12.36, 17.06 and 9.12 is: 12.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12.36 : 17.06 = 9.12 : x
  2. Step 2: Convert to fraction form
    12.36/17.06 = 9.12/x
  3. Step 3: Cross multiply
    12.36x = 17.06 × 9.12
  4. Step 4: Simplify right side
    12.36x = 155.54
  5. Step 5: Solve for x
    x = 155.54/12.36
  6. Step 6: Final answer
    x = 12.58

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.