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Finding the Fourth Proportional to 8,558.60, 12,827.10 and 4,166.60

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Solution

The fourth proportional to 8,558.60, 12,827.10 and 4,166.60 is: 6,244.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.60 : 12,827.10 = 4,166.60 : x
  2. Step 2: Convert to fraction form
    8,558.60/12,827.10 = 4,166.60/x
  3. Step 3: Cross multiply
    8,558.60x = 12,827.10 × 4,166.60
  4. Step 4: Simplify right side
    8,558.60x = 53,445,394.86
  5. Step 5: Solve for x
    x = 53,445,394.86/8,558.60
  6. Step 6: Final answer
    x = 6,244.64

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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.