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Finding the Fourth Proportional to 15,166.82, 20,930.25 and 8,794.65

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Solution

The fourth proportional to 15,166.82, 20,930.25 and 8,794.65 is: 12,136.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,166.82 : 20,930.25 = 8,794.65 : x
  2. Step 2: Convert to fraction form
    15,166.82/20,930.25 = 8,794.65/x
  3. Step 3: Cross multiply
    15,166.82x = 20,930.25 × 8,794.65
  4. Step 4: Simplify right side
    15,166.82x = 184,074,223.16
  5. Step 5: Solve for x
    x = 184,074,223.16/15,166.82
  6. Step 6: Final answer
    x = 12,136.64

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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.