Home / 8,124.60-12,185.22-2,787.96

Finding the Fourth Proportional to 8,124.60, 12,185.22 and 2,787.96

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Solution

The fourth proportional to 8,124.60, 12,185.22 and 2,787.96 is: 4,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.60 : 12,185.22 = 2,787.96 : x
  2. Step 2: Convert to fraction form
    8,124.60/12,185.22 = 2,787.96/x
  3. Step 3: Cross multiply
    8,124.60x = 12,185.22 × 2,787.96
  4. Step 4: Simplify right side
    8,124.60x = 33,971,905.95
  5. Step 5: Solve for x
    x = 33,971,905.95/8,124.60
  6. Step 6: Final answer
    x = 4,181.36

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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.