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Finding the Fourth Proportional to 8,667.76, 13,003 and 3,738.80

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Solution

The fourth proportional to 8,667.76, 13,003 and 3,738.80 is: 5,608.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.76 : 13,003 = 3,738.80 : x
  2. Step 2: Convert to fraction form
    8,667.76/13,003 = 3,738.80/x
  3. Step 3: Cross multiply
    8,667.76x = 13,003 × 3,738.80
  4. Step 4: Simplify right side
    8,667.76x = 48,615,616.40
  5. Step 5: Solve for x
    x = 48,615,616.40/8,667.76
  6. Step 6: Final answer
    x = 5,608.79

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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.