Home / 13,455.72-20,183.58-4,095.77

Finding the Fourth Proportional to 13,455.72, 20,183.58 and 4,095.77

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Solution

The fourth proportional to 13,455.72, 20,183.58 and 4,095.77 is: 6,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.72 : 20,183.58 = 4,095.77 : x
  2. Step 2: Convert to fraction form
    13,455.72/20,183.58 = 4,095.77/x
  3. Step 3: Cross multiply
    13,455.72x = 20,183.58 × 4,095.77
  4. Step 4: Simplify right side
    13,455.72x = 82,667,200.54
  5. Step 5: Solve for x
    x = 82,667,200.54/13,455.72
  6. Step 6: Final answer
    x = 6,143.65

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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.