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Finding the Fourth Proportional to 12,704.79, 19,068.81 and 6,469.11

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Solution

The fourth proportional to 12,704.79, 19,068.81 and 6,469.11 is: 9,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.79 : 19,068.81 = 6,469.11 : x
  2. Step 2: Convert to fraction form
    12,704.79/19,068.81 = 6,469.11/x
  3. Step 3: Cross multiply
    12,704.79x = 19,068.81 × 6,469.11
  4. Step 4: Simplify right side
    12,704.79x = 123,358,229.46
  5. Step 5: Solve for x
    x = 123,358,229.46/12,704.79
  6. Step 6: Final answer
    x = 9,709.58

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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.