Home / 9,238.92-12,749.52-5,205.72

Finding the Fourth Proportional to 9,238.92, 12,749.52 and 5,205.72

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Solution

The fourth proportional to 9,238.92, 12,749.52 and 5,205.72 is: 7,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,238.92 : 12,749.52 = 5,205.72 : x
  2. Step 2: Convert to fraction form
    9,238.92/12,749.52 = 5,205.72/x
  3. Step 3: Cross multiply
    9,238.92x = 12,749.52 × 5,205.72
  4. Step 4: Simplify right side
    9,238.92x = 66,370,431.25
  5. Step 5: Solve for x
    x = 66,370,431.25/9,238.92
  6. Step 6: Final answer
    x = 7,183.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.