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Finding the Fourth Proportional to 9,253.78, 12,771.74 and 6,879.52

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Solution

The fourth proportional to 9,253.78, 12,771.74 and 6,879.52 is: 9,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,253.78 : 12,771.74 = 6,879.52 : x
  2. Step 2: Convert to fraction form
    9,253.78/12,771.74 = 6,879.52/x
  3. Step 3: Cross multiply
    9,253.78x = 12,771.74 × 6,879.52
  4. Step 4: Simplify right side
    9,253.78x = 87,863,426.95
  5. Step 5: Solve for x
    x = 87,863,426.95/9,253.78
  6. Step 6: Final answer
    x = 9,494.87

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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.