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Finding the Fourth Proportional to 7,992.55, 11,029.31 and 4,455.07

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Solution

The fourth proportional to 7,992.55, 11,029.31 and 4,455.07 is: 6,147.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.55 : 11,029.31 = 4,455.07 : x
  2. Step 2: Convert to fraction form
    7,992.55/11,029.31 = 4,455.07/x
  3. Step 3: Cross multiply
    7,992.55x = 11,029.31 × 4,455.07
  4. Step 4: Simplify right side
    7,992.55x = 49,136,325.83
  5. Step 5: Solve for x
    x = 49,136,325.83/7,992.55
  6. Step 6: Final answer
    x = 6,147.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.