Home / 18,647.48-27,965.63-5,319.54

Finding the Fourth Proportional to 18,647.48, 27,965.63 and 5,319.54

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Solution

The fourth proportional to 18,647.48, 27,965.63 and 5,319.54 is: 7,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.48 : 27,965.63 = 5,319.54 : x
  2. Step 2: Convert to fraction form
    18,647.48/27,965.63 = 5,319.54/x
  3. Step 3: Cross multiply
    18,647.48x = 27,965.63 × 5,319.54
  4. Step 4: Simplify right side
    18,647.48x = 148,764,270.79
  5. Step 5: Solve for x
    x = 148,764,270.79/18,647.48
  6. Step 6: Final answer
    x = 7,977.71

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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.