Home / 7,823.40-11,736.12-2,556.57

Finding the Fourth Proportional to 7,823.40, 11,736.12 and 2,556.57

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Solution

The fourth proportional to 7,823.40, 11,736.12 and 2,556.57 is: 3,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,823.40 : 11,736.12 = 2,556.57 : x
  2. Step 2: Convert to fraction form
    7,823.40/11,736.12 = 2,556.57/x
  3. Step 3: Cross multiply
    7,823.40x = 11,736.12 × 2,556.57
  4. Step 4: Simplify right side
    7,823.40x = 30,004,212.31
  5. Step 5: Solve for x
    x = 30,004,212.31/7,823.40
  6. Step 6: Final answer
    x = 3,835.19

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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.