Home / 7,884.74-11,819.72-2,686.97

Finding the Fourth Proportional to 7,884.74, 11,819.72 and 2,686.97

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Solution

The fourth proportional to 7,884.74, 11,819.72 and 2,686.97 is: 4,027.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.74 : 11,819.72 = 2,686.97 : x
  2. Step 2: Convert to fraction form
    7,884.74/11,819.72 = 2,686.97/x
  3. Step 3: Cross multiply
    7,884.74x = 11,819.72 × 2,686.97
  4. Step 4: Simplify right side
    7,884.74x = 31,759,269.32
  5. Step 5: Solve for x
    x = 31,759,269.32/7,884.74
  6. Step 6: Final answer
    x = 4,027.94

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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.