Home / 13,431.73-20,147.75-4,071.67

Finding the Fourth Proportional to 13,431.73, 20,147.75 and 4,071.67

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Solution

The fourth proportional to 13,431.73, 20,147.75 and 4,071.67 is: 6,107.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.73 : 20,147.75 = 4,071.67 : x
  2. Step 2: Convert to fraction form
    13,431.73/20,147.75 = 4,071.67/x
  3. Step 3: Cross multiply
    13,431.73x = 20,147.75 × 4,071.67
  4. Step 4: Simplify right side
    13,431.73x = 82,035,054.62
  5. Step 5: Solve for x
    x = 82,035,054.62/13,431.73
  6. Step 6: Final answer
    x = 6,107.56

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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.