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Finding the Fourth Proportional to 15,383.62, 23,081.82 and 7,374.34

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Solution

The fourth proportional to 15,383.62, 23,081.82 and 7,374.34 is: 11,064.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.62 : 23,081.82 = 7,374.34 : x
  2. Step 2: Convert to fraction form
    15,383.62/23,081.82 = 7,374.34/x
  3. Step 3: Cross multiply
    15,383.62x = 23,081.82 × 7,374.34
  4. Step 4: Simplify right side
    15,383.62x = 170,213,188.50
  5. Step 5: Solve for x
    x = 170,213,188.50/15,383.62
  6. Step 6: Final answer
    x = 11,064.57

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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.