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Finding the Fourth Proportional to 8,548.10, 12,812.10 and 3,862.64

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Solution

The fourth proportional to 8,548.10, 12,812.10 and 3,862.64 is: 5,789.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,548.10 : 12,812.10 = 3,862.64 : x
  2. Step 2: Convert to fraction form
    8,548.10/12,812.10 = 3,862.64/x
  3. Step 3: Cross multiply
    8,548.10x = 12,812.10 × 3,862.64
  4. Step 4: Simplify right side
    8,548.10x = 49,488,529.94
  5. Step 5: Solve for x
    x = 49,488,529.94/8,548.10
  6. Step 6: Final answer
    x = 5,789.42

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1.5x scale

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.