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Finding the Fourth Proportional to 11,088, 15,299.15 and 6,487.92

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Solution

The fourth proportional to 11,088, 15,299.15 and 6,487.92 is: 8,951.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,088 : 15,299.15 = 6,487.92 : x
  2. Step 2: Convert to fraction form
    11,088/15,299.15 = 6,487.92/x
  3. Step 3: Cross multiply
    11,088x = 15,299.15 × 6,487.92
  4. Step 4: Simplify right side
    11,088x = 99,259,628.83
  5. Step 5: Solve for x
    x = 99,259,628.83/11,088
  6. Step 6: Final answer
    x = 8,951.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.