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Finding the Fourth Proportional to 8,384.43, 12,578.46 and 2,541.48

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Solution

The fourth proportional to 8,384.43, 12,578.46 and 2,541.48 is: 3,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,384.43 : 12,578.46 = 2,541.48 : x
  2. Step 2: Convert to fraction form
    8,384.43/12,578.46 = 2,541.48/x
  3. Step 3: Cross multiply
    8,384.43x = 12,578.46 × 2,541.48
  4. Step 4: Simplify right side
    8,384.43x = 31,967,904.52
  5. Step 5: Solve for x
    x = 31,967,904.52/8,384.43
  6. Step 6: Final answer
    x = 3,812.77

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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.