Home / 14.34-21.53-9

Finding the Fourth Proportional to 14.34, 21.53 and 9

Calculator

Solution

The fourth proportional to 14.34, 21.53 and 9 is: 13.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.34 : 21.53 = 9 : x
  2. Step 2: Convert to fraction form
    14.34/21.53 = 9/x
  3. Step 3: Cross multiply
    14.34x = 21.53 × 9
  4. Step 4: Simplify right side
    14.34x = 193.73
  5. Step 5: Solve for x
    x = 193.73/14.34
  6. Step 6: Final answer
    x = 13.51

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.