Home / 7,831.77-11,743.78-3,673.72

Finding the Fourth Proportional to 7,831.77, 11,743.78 and 3,673.72

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Solution

The fourth proportional to 7,831.77, 11,743.78 and 3,673.72 is: 5,508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.77 : 11,743.78 = 3,673.72 : x
  2. Step 2: Convert to fraction form
    7,831.77/11,743.78 = 3,673.72/x
  3. Step 3: Cross multiply
    7,831.77x = 11,743.78 × 3,673.72
  4. Step 4: Simplify right side
    7,831.77x = 43,143,359.46
  5. Step 5: Solve for x
    x = 43,143,359.46/7,831.77
  6. Step 6: Final answer
    x = 5,508.76

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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.