Home / 7,884.55-11,831.42-4,377.49

Finding the Fourth Proportional to 7,884.55, 11,831.42 and 4,377.49

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Solution

The fourth proportional to 7,884.55, 11,831.42 and 4,377.49 is: 6,568.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.55 : 11,831.42 = 4,377.49 : x
  2. Step 2: Convert to fraction form
    7,884.55/11,831.42 = 4,377.49/x
  3. Step 3: Cross multiply
    7,884.55x = 11,831.42 × 4,377.49
  4. Step 4: Simplify right side
    7,884.55x = 51,791,922.74
  5. Step 5: Solve for x
    x = 51,791,922.74/7,884.55
  6. Step 6: Final answer
    x = 6,568.79

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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.