Home / 11,747.66-16,211.83-6,442.47

Finding the Fourth Proportional to 11,747.66, 16,211.83 and 6,442.47

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Solution

The fourth proportional to 11,747.66, 16,211.83 and 6,442.47 is: 8,890.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.66 : 16,211.83 = 6,442.47 : x
  2. Step 2: Convert to fraction form
    11,747.66/16,211.83 = 6,442.47/x
  3. Step 3: Cross multiply
    11,747.66x = 16,211.83 × 6,442.47
  4. Step 4: Simplify right side
    11,747.66x = 104,444,228.42
  5. Step 5: Solve for x
    x = 104,444,228.42/11,747.66
  6. Step 6: Final answer
    x = 8,890.64

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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.