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Finding the Fourth Proportional to 11,328, 16,988.76 and 4,755.66

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Solution

The fourth proportional to 11,328, 16,988.76 and 4,755.66 is: 7,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328 : 16,988.76 = 4,755.66 : x
  2. Step 2: Convert to fraction form
    11,328/16,988.76 = 4,755.66/x
  3. Step 3: Cross multiply
    11,328x = 16,988.76 × 4,755.66
  4. Step 4: Simplify right side
    11,328x = 80,792,766.38
  5. Step 5: Solve for x
    x = 80,792,766.38/11,328
  6. Step 6: Final answer
    x = 7,132.13

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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.