Home / 6,745.14-9,308.40-3,912.76

Finding the Fourth Proportional to 6,745.14, 9,308.40 and 3,912.76

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Solution

The fourth proportional to 6,745.14, 9,308.40 and 3,912.76 is: 5,399.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,745.14 : 9,308.40 = 3,912.76 : x
  2. Step 2: Convert to fraction form
    6,745.14/9,308.40 = 3,912.76/x
  3. Step 3: Cross multiply
    6,745.14x = 9,308.40 × 3,912.76
  4. Step 4: Simplify right side
    6,745.14x = 36,421,535.18
  5. Step 5: Solve for x
    x = 36,421,535.18/6,745.14
  6. Step 6: Final answer
    x = 5,399.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.