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Finding the Fourth Proportional to 8,498.91, 11,728.55 and 4,772.91

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Solution

The fourth proportional to 8,498.91, 11,728.55 and 4,772.91 is: 6,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498.91 : 11,728.55 = 4,772.91 : x
  2. Step 2: Convert to fraction form
    8,498.91/11,728.55 = 4,772.91/x
  3. Step 3: Cross multiply
    8,498.91x = 11,728.55 × 4,772.91
  4. Step 4: Simplify right side
    8,498.91x = 55,979,289.72
  5. Step 5: Solve for x
    x = 55,979,289.72/8,498.91
  6. Step 6: Final answer
    x = 6,586.64

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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.