Home / 9,129.29-13,694.41-2,889.96

Finding the Fourth Proportional to 9,129.29, 13,694.41 and 2,889.96

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Solution

The fourth proportional to 9,129.29, 13,694.41 and 2,889.96 is: 4,335.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.29 : 13,694.41 = 2,889.96 : x
  2. Step 2: Convert to fraction form
    9,129.29/13,694.41 = 2,889.96/x
  3. Step 3: Cross multiply
    9,129.29x = 13,694.41 × 2,889.96
  4. Step 4: Simplify right side
    9,129.29x = 39,576,228.65
  5. Step 5: Solve for x
    x = 39,576,228.65/9,129.29
  6. Step 6: Final answer
    x = 4,335.09

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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.