Home / 12,787.89-19,180.62-4,467.98

Finding the Fourth Proportional to 12,787.89, 19,180.62 and 4,467.98

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Solution

The fourth proportional to 12,787.89, 19,180.62 and 4,467.98 is: 6,701.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.89 : 19,180.62 = 4,467.98 : x
  2. Step 2: Convert to fraction form
    12,787.89/19,180.62 = 4,467.98/x
  3. Step 3: Cross multiply
    12,787.89x = 19,180.62 × 4,467.98
  4. Step 4: Simplify right side
    12,787.89x = 85,698,530.64
  5. Step 5: Solve for x
    x = 85,698,530.64/12,787.89
  6. Step 6: Final answer
    x = 6,701.54

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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.