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Finding the Fourth Proportional to 8,696.27, 12,001.36 and 4,919.77

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Solution

The fourth proportional to 8,696.27, 12,001.36 and 4,919.77 is: 6,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.27 : 12,001.36 = 4,919.77 : x
  2. Step 2: Convert to fraction form
    8,696.27/12,001.36 = 4,919.77/x
  3. Step 3: Cross multiply
    8,696.27x = 12,001.36 × 4,919.77
  4. Step 4: Simplify right side
    8,696.27x = 59,043,930.89
  5. Step 5: Solve for x
    x = 59,043,930.89/8,696.27
  6. Step 6: Final answer
    x = 6,789.57

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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.