Home / 8,147.27-11,239.32-4,789.92

Finding the Fourth Proportional to 8,147.27, 11,239.32 and 4,789.92

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Solution

The fourth proportional to 8,147.27, 11,239.32 and 4,789.92 is: 6,607.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.27 : 11,239.32 = 4,789.92 : x
  2. Step 2: Convert to fraction form
    8,147.27/11,239.32 = 4,789.92/x
  3. Step 3: Cross multiply
    8,147.27x = 11,239.32 × 4,789.92
  4. Step 4: Simplify right side
    8,147.27x = 53,835,443.65
  5. Step 5: Solve for x
    x = 53,835,443.65/8,147.27
  6. Step 6: Final answer
    x = 6,607.79

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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.