Home / 13,607.73-20,419.37-5,286.67

Finding the Fourth Proportional to 13,607.73, 20,419.37 and 5,286.67

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Solution

The fourth proportional to 13,607.73, 20,419.37 and 5,286.67 is: 7,933.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.73 : 20,419.37 = 5,286.67 : x
  2. Step 2: Convert to fraction form
    13,607.73/20,419.37 = 5,286.67/x
  3. Step 3: Cross multiply
    13,607.73x = 20,419.37 × 5,286.67
  4. Step 4: Simplify right side
    13,607.73x = 107,950,413.14
  5. Step 5: Solve for x
    x = 107,950,413.14/13,607.73
  6. Step 6: Final answer
    x = 7,933.02

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1.5x scale

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.