Home / 17,905.82-26,856.60-4,759.20

Finding the Fourth Proportional to 17,905.82, 26,856.60 and 4,759.20

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Solution

The fourth proportional to 17,905.82, 26,856.60 and 4,759.20 is: 7,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,905.82 : 26,856.60 = 4,759.20 : x
  2. Step 2: Convert to fraction form
    17,905.82/26,856.60 = 4,759.20/x
  3. Step 3: Cross multiply
    17,905.82x = 26,856.60 × 4,759.20
  4. Step 4: Simplify right side
    17,905.82x = 127,815,930.72
  5. Step 5: Solve for x
    x = 127,815,930.72/17,905.82
  6. Step 6: Final answer
    x = 7,138.24

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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.