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Finding the Fourth Proportional to 8,671.39, 13,003.03 and 3,124.01

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Solution

The fourth proportional to 8,671.39, 13,003.03 and 3,124.01 is: 4,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.39 : 13,003.03 = 3,124.01 : x
  2. Step 2: Convert to fraction form
    8,671.39/13,003.03 = 3,124.01/x
  3. Step 3: Cross multiply
    8,671.39x = 13,003.03 × 3,124.01
  4. Step 4: Simplify right side
    8,671.39x = 40,621,540.74
  5. Step 5: Solve for x
    x = 40,621,540.74/8,671.39
  6. Step 6: Final answer
    x = 4,684.55

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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.