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Finding the Fourth Proportional to 8,958.11, 13,437 and 3,114.56

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Solution

The fourth proportional to 8,958.11, 13,437 and 3,114.56 is: 4,671.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.11 : 13,437 = 3,114.56 : x
  2. Step 2: Convert to fraction form
    8,958.11/13,437 = 3,114.56/x
  3. Step 3: Cross multiply
    8,958.11x = 13,437 × 3,114.56
  4. Step 4: Simplify right side
    8,958.11x = 41,850,376.31
  5. Step 5: Solve for x
    x = 41,850,376.31/8,958.11
  6. Step 6: Final answer
    x = 4,671.79

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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.