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Finding the Fourth Proportional to 8,328.91, 11,493.55 and 4,552.20

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Solution

The fourth proportional to 8,328.91, 11,493.55 and 4,552.20 is: 6,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.91 : 11,493.55 = 4,552.20 : x
  2. Step 2: Convert to fraction form
    8,328.91/11,493.55 = 4,552.20/x
  3. Step 3: Cross multiply
    8,328.91x = 11,493.55 × 4,552.20
  4. Step 4: Simplify right side
    8,328.91x = 52,320,938.31
  5. Step 5: Solve for x
    x = 52,320,938.31/8,328.91
  6. Step 6: Final answer
    x = 6,281.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.