Home / 12,183.96-18,283.45-4,787.11

Finding the Fourth Proportional to 12,183.96, 18,283.45 and 4,787.11

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Solution

The fourth proportional to 12,183.96, 18,283.45 and 4,787.11 is: 7,183.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.96 : 18,283.45 = 4,787.11 : x
  2. Step 2: Convert to fraction form
    12,183.96/18,283.45 = 4,787.11/x
  3. Step 3: Cross multiply
    12,183.96x = 18,283.45 × 4,787.11
  4. Step 4: Simplify right side
    12,183.96x = 87,524,886.33
  5. Step 5: Solve for x
    x = 87,524,886.33/12,183.96
  6. Step 6: Final answer
    x = 7,183.62

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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.