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Finding the Fourth Proportional to 8,702.96, 12,004.13 and 5,557.73

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Solution

The fourth proportional to 8,702.96, 12,004.13 and 5,557.73 is: 7,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.96 : 12,004.13 = 5,557.73 : x
  2. Step 2: Convert to fraction form
    8,702.96/12,004.13 = 5,557.73/x
  3. Step 3: Cross multiply
    8,702.96x = 12,004.13 × 5,557.73
  4. Step 4: Simplify right side
    8,702.96x = 66,715,667.30
  5. Step 5: Solve for x
    x = 66,715,667.30/8,702.96
  6. Step 6: Final answer
    x = 7,665.86

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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.