Home / 7,886.97-11,831.67-3,508.11

Finding the Fourth Proportional to 7,886.97, 11,831.67 and 3,508.11

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Solution

The fourth proportional to 7,886.97, 11,831.67 and 3,508.11 is: 5,262.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.97 : 11,831.67 = 3,508.11 : x
  2. Step 2: Convert to fraction form
    7,886.97/11,831.67 = 3,508.11/x
  3. Step 3: Cross multiply
    7,886.97x = 11,831.67 × 3,508.11
  4. Step 4: Simplify right side
    7,886.97x = 41,506,799.84
  5. Step 5: Solve for x
    x = 41,506,799.84/7,886.97
  6. Step 6: Final answer
    x = 5,262.71

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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.