Home / 9,215.40-13,806.90-8,632.20

Finding the Fourth Proportional to 9,215.40, 13,806.90 and 8,632.20

Calculator

Solution

The fourth proportional to 9,215.40, 13,806.90 and 8,632.20 is: 12,933.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.40 : 13,806.90 = 8,632.20 : x
  2. Step 2: Convert to fraction form
    9,215.40/13,806.90 = 8,632.20/x
  3. Step 3: Cross multiply
    9,215.40x = 13,806.90 × 8,632.20
  4. Step 4: Simplify right side
    9,215.40x = 119,183,922.18
  5. Step 5: Solve for x
    x = 119,183,922.18/9,215.40
  6. Step 6: Final answer
    x = 12,933.13

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.