Home / 11,747.78-16,211.91-6,442.94

Finding the Fourth Proportional to 11,747.78, 16,211.91 and 6,442.94

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Solution

The fourth proportional to 11,747.78, 16,211.91 and 6,442.94 is: 8,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.78 : 16,211.91 = 6,442.94 : x
  2. Step 2: Convert to fraction form
    11,747.78/16,211.91 = 6,442.94/x
  3. Step 3: Cross multiply
    11,747.78x = 16,211.91 × 6,442.94
  4. Step 4: Simplify right side
    11,747.78x = 104,452,282.36
  5. Step 5: Solve for x
    x = 104,452,282.36/11,747.78
  6. Step 6: Final answer
    x = 8,891.24

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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.