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Finding the Fourth Proportional to 8,551.87, 12,827.68 and 4,389.48

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Solution

The fourth proportional to 8,551.87, 12,827.68 and 4,389.48 is: 6,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.87 : 12,827.68 = 4,389.48 : x
  2. Step 2: Convert to fraction form
    8,551.87/12,827.68 = 4,389.48/x
  3. Step 3: Cross multiply
    8,551.87x = 12,827.68 × 4,389.48
  4. Step 4: Simplify right side
    8,551.87x = 56,306,844.81
  5. Step 5: Solve for x
    x = 56,306,844.81/8,551.87
  6. Step 6: Final answer
    x = 6,584.16

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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.