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Finding the Fourth Proportional to 8,447.57, 11,658.50 and 4,671.02

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Solution

The fourth proportional to 8,447.57, 11,658.50 and 4,671.02 is: 6,446.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.57 : 11,658.50 = 4,671.02 : x
  2. Step 2: Convert to fraction form
    8,447.57/11,658.50 = 4,671.02/x
  3. Step 3: Cross multiply
    8,447.57x = 11,658.50 × 4,671.02
  4. Step 4: Simplify right side
    8,447.57x = 54,457,104.14
  5. Step 5: Solve for x
    x = 54,457,104.14/8,447.57
  6. Step 6: Final answer
    x = 6,446.48

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