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Finding the Fourth Proportional to 8,254.53, 12,379.85 and 4,923.71

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Solution

The fourth proportional to 8,254.53, 12,379.85 and 4,923.71 is: 7,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.53 : 12,379.85 = 4,923.71 : x
  2. Step 2: Convert to fraction form
    8,254.53/12,379.85 = 4,923.71/x
  3. Step 3: Cross multiply
    8,254.53x = 12,379.85 × 4,923.71
  4. Step 4: Simplify right side
    8,254.53x = 60,954,791.24
  5. Step 5: Solve for x
    x = 60,954,791.24/8,254.53
  6. Step 6: Final answer
    x = 7,384.40

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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.