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Finding the Fourth Proportional to 9,489.78, 14,234.58 and 3,249.72

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Solution

The fourth proportional to 9,489.78, 14,234.58 and 3,249.72 is: 4,874.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,489.78 : 14,234.58 = 3,249.72 : x
  2. Step 2: Convert to fraction form
    9,489.78/14,234.58 = 3,249.72/x
  3. Step 3: Cross multiply
    9,489.78x = 14,234.58 × 3,249.72
  4. Step 4: Simplify right side
    9,489.78x = 46,258,399.32
  5. Step 5: Solve for x
    x = 46,258,399.32/9,489.78
  6. Step 6: Final answer
    x = 4,874.55

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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.