Home / 13,713.12-20,556.72-4,945.68

Finding the Fourth Proportional to 13,713.12, 20,556.72 and 4,945.68

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Solution

The fourth proportional to 13,713.12, 20,556.72 and 4,945.68 is: 7,413.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.12 : 20,556.72 = 4,945.68 : x
  2. Step 2: Convert to fraction form
    13,713.12/20,556.72 = 4,945.68/x
  3. Step 3: Cross multiply
    13,713.12x = 20,556.72 × 4,945.68
  4. Step 4: Simplify right side
    13,713.12x = 101,666,958.97
  5. Step 5: Solve for x
    x = 101,666,958.97/13,713.12
  6. Step 6: Final answer
    x = 7,413.85

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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.