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Finding the Fourth Proportional to 8,551.36, 12,828.84 and 4,855.30

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Solution

The fourth proportional to 8,551.36, 12,828.84 and 4,855.30 is: 7,283.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.36 : 12,828.84 = 4,855.30 : x
  2. Step 2: Convert to fraction form
    8,551.36/12,828.84 = 4,855.30/x
  3. Step 3: Cross multiply
    8,551.36x = 12,828.84 × 4,855.30
  4. Step 4: Simplify right side
    8,551.36x = 62,287,866.85
  5. Step 5: Solve for x
    x = 62,287,866.85/8,551.36
  6. Step 6: Final answer
    x = 7,283.97

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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.