Home / 7,884.87-11,831.43-5,110.83

Finding the Fourth Proportional to 7,884.87, 11,831.43 and 5,110.83

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Solution

The fourth proportional to 7,884.87, 11,831.43 and 5,110.83 is: 7,668.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.87 : 11,831.43 = 5,110.83 : x
  2. Step 2: Convert to fraction form
    7,884.87/11,831.43 = 5,110.83/x
  3. Step 3: Cross multiply
    7,884.87x = 11,831.43 × 5,110.83
  4. Step 4: Simplify right side
    7,884.87x = 60,468,427.39
  5. Step 5: Solve for x
    x = 60,468,427.39/7,884.87
  6. Step 6: Final answer
    x = 7,668.92

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1.5x scale

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.