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Finding the Fourth Proportional to 9,929.74, 13,668.72 and 8,584.74

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Solution

The fourth proportional to 9,929.74, 13,668.72 and 8,584.74 is: 11,817.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.74 : 13,668.72 = 8,584.74 : x
  2. Step 2: Convert to fraction form
    9,929.74/13,668.72 = 8,584.74/x
  3. Step 3: Cross multiply
    9,929.74x = 13,668.72 × 8,584.74
  4. Step 4: Simplify right side
    9,929.74x = 117,342,407.33
  5. Step 5: Solve for x
    x = 117,342,407.33/9,929.74
  6. Step 6: Final answer
    x = 11,817.27

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