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Finding the Fourth Proportional to 11,937.38, 17,906.06 and 5,011.88

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Solution

The fourth proportional to 11,937.38, 17,906.06 and 5,011.88 is: 7,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,937.38 : 17,906.06 = 5,011.88 : x
  2. Step 2: Convert to fraction form
    11,937.38/17,906.06 = 5,011.88/x
  3. Step 3: Cross multiply
    11,937.38x = 17,906.06 × 5,011.88
  4. Step 4: Simplify right side
    11,937.38x = 89,742,946.99
  5. Step 5: Solve for x
    x = 89,742,946.99/11,937.38
  6. Step 6: Final answer
    x = 7,517.81

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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.