Home / 7,989.66-11,025.51-4,452.78

Finding the Fourth Proportional to 7,989.66, 11,025.51 and 4,452.78

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Solution

The fourth proportional to 7,989.66, 11,025.51 and 4,452.78 is: 6,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.66 : 11,025.51 = 4,452.78 : x
  2. Step 2: Convert to fraction form
    7,989.66/11,025.51 = 4,452.78/x
  3. Step 3: Cross multiply
    7,989.66x = 11,025.51 × 4,452.78
  4. Step 4: Simplify right side
    7,989.66x = 49,094,170.42
  5. Step 5: Solve for x
    x = 49,094,170.42/7,989.66
  6. Step 6: Final answer
    x = 6,144.71

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1.5x scale

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.