Home / 7,904.49-11,863.91-4,209.85

Finding the Fourth Proportional to 7,904.49, 11,863.91 and 4,209.85

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Solution

The fourth proportional to 7,904.49, 11,863.91 and 4,209.85 is: 6,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,904.49 : 11,863.91 = 4,209.85 : x
  2. Step 2: Convert to fraction form
    7,904.49/11,863.91 = 4,209.85/x
  3. Step 3: Cross multiply
    7,904.49x = 11,863.91 × 4,209.85
  4. Step 4: Simplify right side
    7,904.49x = 49,945,281.51
  5. Step 5: Solve for x
    x = 49,945,281.51/7,904.49
  6. Step 6: Final answer
    x = 6,318.60

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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.