Home / 8,768.40-13,138.20-7,299.60

Finding the Fourth Proportional to 8,768.40, 13,138.20 and 7,299.60

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Solution

The fourth proportional to 8,768.40, 13,138.20 and 7,299.60 is: 10,937.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.40 : 13,138.20 = 7,299.60 : x
  2. Step 2: Convert to fraction form
    8,768.40/13,138.20 = 7,299.60/x
  3. Step 3: Cross multiply
    8,768.40x = 13,138.20 × 7,299.60
  4. Step 4: Simplify right side
    8,768.40x = 95,903,604.72
  5. Step 5: Solve for x
    x = 95,903,604.72/8,768.40
  6. Step 6: Final answer
    x = 10,937.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.