Home / 9-13.56-7.02

Finding the Fourth Proportional to 9, 13.56 and 7.02

Calculator

Solution

The fourth proportional to 9, 13.56 and 7.02 is: 10.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9 : 13.56 = 7.02 : x
  2. Step 2: Convert to fraction form
    9/13.56 = 7.02/x
  3. Step 3: Cross multiply
    9x = 13.56 × 7.02
  4. Step 4: Simplify right side
    9x = 95.19
  5. Step 5: Solve for x
    x = 95.19/9
  6. Step 6: Final answer
    x = 10.58

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.