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Finding the Fourth Proportional to 8,563.72, 12,847.30 and 3,020.99

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Solution

The fourth proportional to 8,563.72, 12,847.30 and 3,020.99 is: 4,532.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,563.72 : 12,847.30 = 3,020.99 : x
  2. Step 2: Convert to fraction form
    8,563.72/12,847.30 = 3,020.99/x
  3. Step 3: Cross multiply
    8,563.72x = 12,847.30 × 3,020.99
  4. Step 4: Simplify right side
    8,563.72x = 38,811,541.22
  5. Step 5: Solve for x
    x = 38,811,541.22/8,563.72
  6. Step 6: Final answer
    x = 4,532.09

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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.