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Finding the Fourth Proportional to 8,558.84, 12,835.16 and 3,628.80

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Solution

The fourth proportional to 8,558.84, 12,835.16 and 3,628.80 is: 5,441.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.84 : 12,835.16 = 3,628.80 : x
  2. Step 2: Convert to fraction form
    8,558.84/12,835.16 = 3,628.80/x
  3. Step 3: Cross multiply
    8,558.84x = 12,835.16 × 3,628.80
  4. Step 4: Simplify right side
    8,558.84x = 46,576,228.61
  5. Step 5: Solve for x
    x = 46,576,228.61/8,558.84
  6. Step 6: Final answer
    x = 5,441.89

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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.