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Finding the Fourth Proportional to 9,885.15, 14,827.74 and 2,489.61

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Solution

The fourth proportional to 9,885.15, 14,827.74 and 2,489.61 is: 3,734.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.15 : 14,827.74 = 2,489.61 : x
  2. Step 2: Convert to fraction form
    9,885.15/14,827.74 = 2,489.61/x
  3. Step 3: Cross multiply
    9,885.15x = 14,827.74 × 2,489.61
  4. Step 4: Simplify right side
    9,885.15x = 36,915,289.78
  5. Step 5: Solve for x
    x = 36,915,289.78/9,885.15
  6. Step 6: Final answer
    x = 3,734.42

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Similar ratio
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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.