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Finding the Fourth Proportional to 19,567.66, 29,352.57 and 7,879.36

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Solution

The fourth proportional to 19,567.66, 29,352.57 and 7,879.36 is: 11,819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,567.66 : 29,352.57 = 7,879.36 : x
  2. Step 2: Convert to fraction form
    19,567.66/29,352.57 = 7,879.36/x
  3. Step 3: Cross multiply
    19,567.66x = 29,352.57 × 7,879.36
  4. Step 4: Simplify right side
    19,567.66x = 231,279,465.96
  5. Step 5: Solve for x
    x = 231,279,465.96/19,567.66
  6. Step 6: Final answer
    x = 11,819.47

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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.