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Finding the Fourth Proportional to 7,421.33, 11,133.90 and 5,234.33

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Solution

The fourth proportional to 7,421.33, 11,133.90 and 5,234.33 is: 7,852.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.33 : 11,133.90 = 5,234.33 : x
  2. Step 2: Convert to fraction form
    7,421.33/11,133.90 = 5,234.33/x
  3. Step 3: Cross multiply
    7,421.33x = 11,133.90 × 5,234.33
  4. Step 4: Simplify right side
    7,421.33x = 58,278,506.79
  5. Step 5: Solve for x
    x = 58,278,506.79/7,421.33
  6. Step 6: Final answer
    x = 7,852.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.