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Finding the Fourth Proportional to 8,285.11, 11,433.11 and 4,747.64

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Solution

The fourth proportional to 8,285.11, 11,433.11 and 4,747.64 is: 6,551.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.11 : 11,433.11 = 4,747.64 : x
  2. Step 2: Convert to fraction form
    8,285.11/11,433.11 = 4,747.64/x
  3. Step 3: Cross multiply
    8,285.11x = 11,433.11 × 4,747.64
  4. Step 4: Simplify right side
    8,285.11x = 54,280,290.36
  5. Step 5: Solve for x
    x = 54,280,290.36/8,285.11
  6. Step 6: Final answer
    x = 6,551.55

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1.5x scale

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.