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Finding the Fourth Proportional to 8,854.92, 13,275.12 and 4,172.64

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Solution

The fourth proportional to 8,854.92, 13,275.12 and 4,172.64 is: 6,255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.92 : 13,275.12 = 4,172.64 : x
  2. Step 2: Convert to fraction form
    8,854.92/13,275.12 = 4,172.64/x
  3. Step 3: Cross multiply
    8,854.92x = 13,275.12 × 4,172.64
  4. Step 4: Simplify right side
    8,854.92x = 55,392,296.72
  5. Step 5: Solve for x
    x = 55,392,296.72/8,854.92
  6. Step 6: Final answer
    x = 6,255.54

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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.