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Finding the Fourth Proportional to 8,488.27, 12,719.41 and 4,322.03

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Solution

The fourth proportional to 8,488.27, 12,719.41 and 4,322.03 is: 6,476.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.27 : 12,719.41 = 4,322.03 : x
  2. Step 2: Convert to fraction form
    8,488.27/12,719.41 = 4,322.03/x
  3. Step 3: Cross multiply
    8,488.27x = 12,719.41 × 4,322.03
  4. Step 4: Simplify right side
    8,488.27x = 54,973,671.60
  5. Step 5: Solve for x
    x = 54,973,671.60/8,488.27
  6. Step 6: Final answer
    x = 6,476.43

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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.