Home / 11,904.75-17,859.57-4,979.25

Finding the Fourth Proportional to 11,904.75, 17,859.57 and 4,979.25

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Solution

The fourth proportional to 11,904.75, 17,859.57 and 4,979.25 is: 7,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.75 : 17,859.57 = 4,979.25 : x
  2. Step 2: Convert to fraction form
    11,904.75/17,859.57 = 4,979.25/x
  3. Step 3: Cross multiply
    11,904.75x = 17,859.57 × 4,979.25
  4. Step 4: Simplify right side
    11,904.75x = 88,927,263.92
  5. Step 5: Solve for x
    x = 88,927,263.92/11,904.75
  6. Step 6: Final answer
    x = 7,469.90

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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.