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Finding the Fourth Proportional to 11,860.74, 17,789.58 and 5,285.43

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Solution

The fourth proportional to 11,860.74, 17,789.58 and 5,285.43 is: 7,927.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.74 : 17,789.58 = 5,285.43 : x
  2. Step 2: Convert to fraction form
    11,860.74/17,789.58 = 5,285.43/x
  3. Step 3: Cross multiply
    11,860.74x = 17,789.58 × 5,285.43
  4. Step 4: Simplify right side
    11,860.74x = 94,025,579.82
  5. Step 5: Solve for x
    x = 94,025,579.82/11,860.74
  6. Step 6: Final answer
    x = 7,927.46

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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.