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Finding the Fourth Proportional to 10,788, 16,181.98 and 6,167.76

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Solution

The fourth proportional to 10,788, 16,181.98 and 6,167.76 is: 9,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,788 : 16,181.98 = 6,167.76 : x
  2. Step 2: Convert to fraction form
    10,788/16,181.98 = 6,167.76/x
  3. Step 3: Cross multiply
    10,788x = 16,181.98 × 6,167.76
  4. Step 4: Simplify right side
    10,788x = 99,806,568.96
  5. Step 5: Solve for x
    x = 99,806,568.96/10,788
  6. Step 6: Final answer
    x = 9,251.63

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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.