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Finding the Fourth Proportional to 11,854.38, 17,782.26 and 4,458.90

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Solution

The fourth proportional to 11,854.38, 17,782.26 and 4,458.90 is: 6,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,854.38 : 17,782.26 = 4,458.90 : x
  2. Step 2: Convert to fraction form
    11,854.38/17,782.26 = 4,458.90/x
  3. Step 3: Cross multiply
    11,854.38x = 17,782.26 × 4,458.90
  4. Step 4: Simplify right side
    11,854.38x = 79,289,369.08
  5. Step 5: Solve for x
    x = 79,289,369.08/11,854.38
  6. Step 6: Final answer
    x = 6,688.61

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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.