Home / 11,715.38-17,573.09-4,789.88

Finding the Fourth Proportional to 11,715.38, 17,573.09 and 4,789.88

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Solution

The fourth proportional to 11,715.38, 17,573.09 and 4,789.88 is: 7,184.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.38 : 17,573.09 = 4,789.88 : x
  2. Step 2: Convert to fraction form
    11,715.38/17,573.09 = 4,789.88/x
  3. Step 3: Cross multiply
    11,715.38x = 17,573.09 × 4,789.88
  4. Step 4: Simplify right side
    11,715.38x = 84,172,880.51
  5. Step 5: Solve for x
    x = 84,172,880.51/11,715.38
  6. Step 6: Final answer
    x = 7,184.82

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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.