Home / 17,187.78-25,783.38-4,708.56

Finding the Fourth Proportional to 17,187.78, 25,783.38 and 4,708.56

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Solution

The fourth proportional to 17,187.78, 25,783.38 and 4,708.56 is: 7,063.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,187.78 : 25,783.38 = 4,708.56 : x
  2. Step 2: Convert to fraction form
    17,187.78/25,783.38 = 4,708.56/x
  3. Step 3: Cross multiply
    17,187.78x = 25,783.38 × 4,708.56
  4. Step 4: Simplify right side
    17,187.78x = 121,402,591.73
  5. Step 5: Solve for x
    x = 121,402,591.73/17,187.78
  6. Step 6: Final answer
    x = 7,063.31

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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.