Home / 7,929.09-11,885.13-3,766.50

Finding the Fourth Proportional to 7,929.09, 11,885.13 and 3,766.50

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Solution

The fourth proportional to 7,929.09, 11,885.13 and 3,766.50 is: 5,645.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.09 : 11,885.13 = 3,766.50 : x
  2. Step 2: Convert to fraction form
    7,929.09/11,885.13 = 3,766.50/x
  3. Step 3: Cross multiply
    7,929.09x = 11,885.13 × 3,766.50
  4. Step 4: Simplify right side
    7,929.09x = 44,765,342.15
  5. Step 5: Solve for x
    x = 44,765,342.15/7,929.09
  6. Step 6: Final answer
    x = 5,645.71

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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.