Home / 11,231.05-16,848.60-4,657.90

Finding the Fourth Proportional to 11,231.05, 16,848.60 and 4,657.90

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Solution

The fourth proportional to 11,231.05, 16,848.60 and 4,657.90 is: 6,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.05 : 16,848.60 = 4,657.90 : x
  2. Step 2: Convert to fraction form
    11,231.05/16,848.60 = 4,657.90/x
  3. Step 3: Cross multiply
    11,231.05x = 16,848.60 × 4,657.90
  4. Step 4: Simplify right side
    11,231.05x = 78,479,093.94
  5. Step 5: Solve for x
    x = 78,479,093.94/11,231.05
  6. Step 6: Final answer
    x = 6,987.69

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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.