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Finding the Fourth Proportional to 17,911, 26,866.62 and 5,599

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Solution

The fourth proportional to 17,911, 26,866.62 and 5,599 is: 8,398.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911 : 26,866.62 = 5,599 : x
  2. Step 2: Convert to fraction form
    17,911/26,866.62 = 5,599/x
  3. Step 3: Cross multiply
    17,911x = 26,866.62 × 5,599
  4. Step 4: Simplify right side
    17,911x = 150,426,205.38
  5. Step 5: Solve for x
    x = 150,426,205.38/17,911
  6. Step 6: Final answer
    x = 8,398.54

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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.