Home / 11,717.28-17,578.74-4,791.78

Finding the Fourth Proportional to 11,717.28, 17,578.74 and 4,791.78

Calculator

Solution

The fourth proportional to 11,717.28, 17,578.74 and 4,791.78 is: 7,188.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,717.28 : 17,578.74 = 4,791.78 : x
  2. Step 2: Convert to fraction form
    11,717.28/17,578.74 = 4,791.78/x
  3. Step 3: Cross multiply
    11,717.28x = 17,578.74 × 4,791.78
  4. Step 4: Simplify right side
    11,717.28x = 84,233,454.76
  5. Step 5: Solve for x
    x = 84,233,454.76/11,717.28
  6. Step 6: Final answer
    x = 7,188.82

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.