Home / 7,718.14-11,577.21-5,419.90

Finding the Fourth Proportional to 7,718.14, 11,577.21 and 5,419.90

Calculator

Solution

The fourth proportional to 7,718.14, 11,577.21 and 5,419.90 is: 8,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.14 : 11,577.21 = 5,419.90 : x
  2. Step 2: Convert to fraction form
    7,718.14/11,577.21 = 5,419.90/x
  3. Step 3: Cross multiply
    7,718.14x = 11,577.21 × 5,419.90
  4. Step 4: Simplify right side
    7,718.14x = 62,747,320.48
  5. Step 5: Solve for x
    x = 62,747,320.48/7,718.14
  6. Step 6: Final answer
    x = 8,129.85

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.