Home / 9,375.85-12,940.86-6,189.72

Finding the Fourth Proportional to 9,375.85, 12,940.86 and 6,189.72

Calculator

Solution

The fourth proportional to 9,375.85, 12,940.86 and 6,189.72 is: 8,543.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.85 : 12,940.86 = 6,189.72 : x
  2. Step 2: Convert to fraction form
    9,375.85/12,940.86 = 6,189.72/x
  3. Step 3: Cross multiply
    9,375.85x = 12,940.86 × 6,189.72
  4. Step 4: Simplify right side
    9,375.85x = 80,100,274.64
  5. Step 5: Solve for x
    x = 80,100,274.64/9,375.85
  6. Step 6: Final answer
    x = 8,543.25

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.