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Finding the Fourth Proportional to 17,751, 26,626.98 and 5,439

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Solution

The fourth proportional to 17,751, 26,626.98 and 5,439 is: 8,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,751 : 26,626.98 = 5,439 : x
  2. Step 2: Convert to fraction form
    17,751/26,626.98 = 5,439/x
  3. Step 3: Cross multiply
    17,751x = 26,626.98 × 5,439
  4. Step 4: Simplify right side
    17,751x = 144,824,144.22
  5. Step 5: Solve for x
    x = 144,824,144.22/17,751
  6. Step 6: Final answer
    x = 8,158.65

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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.