Home / 9,408.28-12,983.90-5,216.44

Finding the Fourth Proportional to 9,408.28, 12,983.90 and 5,216.44

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Solution

The fourth proportional to 9,408.28, 12,983.90 and 5,216.44 is: 7,198.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,408.28 : 12,983.90 = 5,216.44 : x
  2. Step 2: Convert to fraction form
    9,408.28/12,983.90 = 5,216.44/x
  3. Step 3: Cross multiply
    9,408.28x = 12,983.90 × 5,216.44
  4. Step 4: Simplify right side
    9,408.28x = 67,729,735.32
  5. Step 5: Solve for x
    x = 67,729,735.32/9,408.28
  6. Step 6: Final answer
    x = 7,198.95

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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.