Home / 7,911.29-11,867.54-2,067.81

Finding the Fourth Proportional to 7,911.29, 11,867.54 and 2,067.81

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Solution

The fourth proportional to 7,911.29, 11,867.54 and 2,067.81 is: 3,101.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.29 : 11,867.54 = 2,067.81 : x
  2. Step 2: Convert to fraction form
    7,911.29/11,867.54 = 2,067.81/x
  3. Step 3: Cross multiply
    7,911.29x = 11,867.54 × 2,067.81
  4. Step 4: Simplify right side
    7,911.29x = 24,539,807.55
  5. Step 5: Solve for x
    x = 24,539,807.55/7,911.29
  6. Step 6: Final answer
    x = 3,101.87

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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.