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Finding the Fourth Proportional to 8,284.52, 12,423.12 and 4,388

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Solution

The fourth proportional to 8,284.52, 12,423.12 and 4,388 is: 6,580.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.52 : 12,423.12 = 4,388 : x
  2. Step 2: Convert to fraction form
    8,284.52/12,423.12 = 4,388/x
  3. Step 3: Cross multiply
    8,284.52x = 12,423.12 × 4,388
  4. Step 4: Simplify right side
    8,284.52x = 54,512,650.56
  5. Step 5: Solve for x
    x = 54,512,650.56/8,284.52
  6. Step 6: Final answer
    x = 6,580.06

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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.