Home / 7,486.88-11,223.09-2,805.62

Finding the Fourth Proportional to 7,486.88, 11,223.09 and 2,805.62

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Solution

The fourth proportional to 7,486.88, 11,223.09 and 2,805.62 is: 4,205.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.88 : 11,223.09 = 2,805.62 : x
  2. Step 2: Convert to fraction form
    7,486.88/11,223.09 = 2,805.62/x
  3. Step 3: Cross multiply
    7,486.88x = 11,223.09 × 2,805.62
  4. Step 4: Simplify right side
    7,486.88x = 31,487,669.65
  5. Step 5: Solve for x
    x = 31,487,669.65/7,486.88
  6. Step 6: Final answer
    x = 4,205.72

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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.