Home / 7,821.34-11,733.93-2,556.65

Finding the Fourth Proportional to 7,821.34, 11,733.93 and 2,556.65

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Solution

The fourth proportional to 7,821.34, 11,733.93 and 2,556.65 is: 3,835.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.34 : 11,733.93 = 2,556.65 : x
  2. Step 2: Convert to fraction form
    7,821.34/11,733.93 = 2,556.65/x
  3. Step 3: Cross multiply
    7,821.34x = 11,733.93 × 2,556.65
  4. Step 4: Simplify right side
    7,821.34x = 29,999,581.47
  5. Step 5: Solve for x
    x = 29,999,581.47/7,821.34
  6. Step 6: Final answer
    x = 3,835.61

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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.