Home / 7,831.97-11,744.49-5,631.50

Finding the Fourth Proportional to 7,831.97, 11,744.49 and 5,631.50

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Solution

The fourth proportional to 7,831.97, 11,744.49 and 5,631.50 is: 8,444.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.97 : 11,744.49 = 5,631.50 : x
  2. Step 2: Convert to fraction form
    7,831.97/11,744.49 = 5,631.50/x
  3. Step 3: Cross multiply
    7,831.97x = 11,744.49 × 5,631.50
  4. Step 4: Simplify right side
    7,831.97x = 66,139,095.44
  5. Step 5: Solve for x
    x = 66,139,095.44/7,831.97
  6. Step 6: Final answer
    x = 8,444.76

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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.