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Finding the Fourth Proportional to 7,904.87, 11,863.15 and 3,744.89

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Solution

The fourth proportional to 7,904.87, 11,863.15 and 3,744.89 is: 5,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,904.87 : 11,863.15 = 3,744.89 : x
  2. Step 2: Convert to fraction form
    7,904.87/11,863.15 = 3,744.89/x
  3. Step 3: Cross multiply
    7,904.87x = 11,863.15 × 3,744.89
  4. Step 4: Simplify right side
    7,904.87x = 44,426,152.00
  5. Step 5: Solve for x
    x = 44,426,152.00/7,904.87
  6. Step 6: Final answer
    x = 5,620.10

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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.