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Finding the Fourth Proportional to 8,667.95, 12,996.46 and 4,775.09

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Solution

The fourth proportional to 8,667.95, 12,996.46 and 4,775.09 is: 7,159.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.95 : 12,996.46 = 4,775.09 : x
  2. Step 2: Convert to fraction form
    8,667.95/12,996.46 = 4,775.09/x
  3. Step 3: Cross multiply
    8,667.95x = 12,996.46 × 4,775.09
  4. Step 4: Simplify right side
    8,667.95x = 62,059,286.73
  5. Step 5: Solve for x
    x = 62,059,286.73/8,667.95
  6. Step 6: Final answer
    x = 7,159.62

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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.