Home / 11,904.86-17,859.54-4,789.64

Finding the Fourth Proportional to 11,904.86, 17,859.54 and 4,789.64

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Solution

The fourth proportional to 11,904.86, 17,859.54 and 4,789.64 is: 7,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.86 : 17,859.54 = 4,789.64 : x
  2. Step 2: Convert to fraction form
    11,904.86/17,859.54 = 4,789.64/x
  3. Step 3: Cross multiply
    11,904.86x = 17,859.54 × 4,789.64
  4. Step 4: Simplify right side
    11,904.86x = 85,540,767.17
  5. Step 5: Solve for x
    x = 85,540,767.17/11,904.86
  6. Step 6: Final answer
    x = 7,185.37

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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.