Home / 12,728.69-19,099.11-6,151.22

Finding the Fourth Proportional to 12,728.69, 19,099.11 and 6,151.22

Calculator

Solution

The fourth proportional to 12,728.69, 19,099.11 and 6,151.22 is: 9,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.69 : 19,099.11 = 6,151.22 : x
  2. Step 2: Convert to fraction form
    12,728.69/19,099.11 = 6,151.22/x
  3. Step 3: Cross multiply
    12,728.69x = 19,099.11 × 6,151.22
  4. Step 4: Simplify right side
    12,728.69x = 117,482,827.41
  5. Step 5: Solve for x
    x = 117,482,827.41/12,728.69
  6. Step 6: Final answer
    x = 9,229.77

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.