Home / 12,787.52-19,181.76-4,022.48

Finding the Fourth Proportional to 12,787.52, 19,181.76 and 4,022.48

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Solution

The fourth proportional to 12,787.52, 19,181.76 and 4,022.48 is: 6,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.52 : 19,181.76 = 4,022.48 : x
  2. Step 2: Convert to fraction form
    12,787.52/19,181.76 = 4,022.48/x
  3. Step 3: Cross multiply
    12,787.52x = 19,181.76 × 4,022.48
  4. Step 4: Simplify right side
    12,787.52x = 77,158,245.96
  5. Step 5: Solve for x
    x = 77,158,245.96/12,787.52
  6. Step 6: Final answer
    x = 6,033.87

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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.