Home / 7,789.37-10,747.89-4,431.92

Finding the Fourth Proportional to 7,789.37, 10,747.89 and 4,431.92

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Solution

The fourth proportional to 7,789.37, 10,747.89 and 4,431.92 is: 6,115.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.37 : 10,747.89 = 4,431.92 : x
  2. Step 2: Convert to fraction form
    7,789.37/10,747.89 = 4,431.92/x
  3. Step 3: Cross multiply
    7,789.37x = 10,747.89 × 4,431.92
  4. Step 4: Simplify right side
    7,789.37x = 47,633,734.91
  5. Step 5: Solve for x
    x = 47,633,734.91/7,789.37
  6. Step 6: Final answer
    x = 6,115.23

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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.