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Finding the Fourth Proportional to 8,289.02, 12,426.50 and 3,605.50

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Solution

The fourth proportional to 8,289.02, 12,426.50 and 3,605.50 is: 5,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.02 : 12,426.50 = 3,605.50 : x
  2. Step 2: Convert to fraction form
    8,289.02/12,426.50 = 3,605.50/x
  3. Step 3: Cross multiply
    8,289.02x = 12,426.50 × 3,605.50
  4. Step 4: Simplify right side
    8,289.02x = 44,803,745.75
  5. Step 5: Solve for x
    x = 44,803,745.75/8,289.02
  6. Step 6: Final answer
    x = 5,405.19

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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.