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Finding the Fourth Proportional to 8,374.95, 12,558.21 and 3,443.25

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Solution

The fourth proportional to 8,374.95, 12,558.21 and 3,443.25 is: 5,163.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.95 : 12,558.21 = 3,443.25 : x
  2. Step 2: Convert to fraction form
    8,374.95/12,558.21 = 3,443.25/x
  3. Step 3: Cross multiply
    8,374.95x = 12,558.21 × 3,443.25
  4. Step 4: Simplify right side
    8,374.95x = 43,241,056.58
  5. Step 5: Solve for x
    x = 43,241,056.58/8,374.95
  6. Step 6: Final answer
    x = 5,163.14

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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.