Home / 8,789.19-13,183.71-2,945.76

Finding the Fourth Proportional to 8,789.19, 13,183.71 and 2,945.76

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Solution

The fourth proportional to 8,789.19, 13,183.71 and 2,945.76 is: 4,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.19 : 13,183.71 = 2,945.76 : x
  2. Step 2: Convert to fraction form
    8,789.19/13,183.71 = 2,945.76/x
  3. Step 3: Cross multiply
    8,789.19x = 13,183.71 × 2,945.76
  4. Step 4: Simplify right side
    8,789.19x = 38,836,045.57
  5. Step 5: Solve for x
    x = 38,836,045.57/8,789.19
  6. Step 6: Final answer
    x = 4,418.61

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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.