Home / 7,934.78-11,886.69-3,768.86

Finding the Fourth Proportional to 7,934.78, 11,886.69 and 3,768.86

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Solution

The fourth proportional to 7,934.78, 11,886.69 and 3,768.86 is: 5,645.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.78 : 11,886.69 = 3,768.86 : x
  2. Step 2: Convert to fraction form
    7,934.78/11,886.69 = 3,768.86/x
  3. Step 3: Cross multiply
    7,934.78x = 11,886.69 × 3,768.86
  4. Step 4: Simplify right side
    7,934.78x = 44,799,270.47
  5. Step 5: Solve for x
    x = 44,799,270.47/7,934.78
  6. Step 6: Final answer
    x = 5,645.94

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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.