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Finding the Fourth Proportional to 13,183.71, 19,775.58 and 4,418.65

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Solution

The fourth proportional to 13,183.71, 19,775.58 and 4,418.65 is: 6,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.71 : 19,775.58 = 4,418.65 : x
  2. Step 2: Convert to fraction form
    13,183.71/19,775.58 = 4,418.65/x
  3. Step 3: Cross multiply
    13,183.71x = 19,775.58 × 4,418.65
  4. Step 4: Simplify right side
    13,183.71x = 87,381,366.57
  5. Step 5: Solve for x
    x = 87,381,366.57/13,183.71
  6. Step 6: Final answer
    x = 6,627.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.