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Finding the Fourth Proportional to 18,676.82, 28,014.62 and 7,583.24

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Solution

The fourth proportional to 18,676.82, 28,014.62 and 7,583.24 is: 11,374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.82 : 28,014.62 = 7,583.24 : x
  2. Step 2: Convert to fraction form
    18,676.82/28,014.62 = 7,583.24/x
  3. Step 3: Cross multiply
    18,676.82x = 28,014.62 × 7,583.24
  4. Step 4: Simplify right side
    18,676.82x = 212,441,586.97
  5. Step 5: Solve for x
    x = 212,441,586.97/18,676.82
  6. Step 6: Final answer
    x = 11,374.61

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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.