Home / 12,787.68-19,181.04-4,469.60

Finding the Fourth Proportional to 12,787.68, 19,181.04 and 4,469.60

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Solution

The fourth proportional to 12,787.68, 19,181.04 and 4,469.60 is: 6,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.68 : 19,181.04 = 4,469.60 : x
  2. Step 2: Convert to fraction form
    12,787.68/19,181.04 = 4,469.60/x
  3. Step 3: Cross multiply
    12,787.68x = 19,181.04 × 4,469.60
  4. Step 4: Simplify right side
    12,787.68x = 85,731,576.38
  5. Step 5: Solve for x
    x = 85,731,576.38/12,787.68
  6. Step 6: Final answer
    x = 6,704.23

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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.