Home / 9,884.42-13,640.87-5,408.56

Finding the Fourth Proportional to 9,884.42, 13,640.87 and 5,408.56

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Solution

The fourth proportional to 9,884.42, 13,640.87 and 5,408.56 is: 7,464.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,884.42 : 13,640.87 = 5,408.56 : x
  2. Step 2: Convert to fraction form
    9,884.42/13,640.87 = 5,408.56/x
  3. Step 3: Cross multiply
    9,884.42x = 13,640.87 × 5,408.56
  4. Step 4: Simplify right side
    9,884.42x = 73,777,463.85
  5. Step 5: Solve for x
    x = 73,777,463.85/9,884.42
  6. Step 6: Final answer
    x = 7,464.02

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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.