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Finding the Fourth Proportional to 8,501.58, 12,738.20 and 2,951.87

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Solution

The fourth proportional to 8,501.58, 12,738.20 and 2,951.87 is: 4,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.58 : 12,738.20 = 2,951.87 : x
  2. Step 2: Convert to fraction form
    8,501.58/12,738.20 = 2,951.87/x
  3. Step 3: Cross multiply
    8,501.58x = 12,738.20 × 2,951.87
  4. Step 4: Simplify right side
    8,501.58x = 37,601,431.98
  5. Step 5: Solve for x
    x = 37,601,431.98/8,501.58
  6. Step 6: Final answer
    x = 4,422.88

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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.