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Finding the Fourth Proportional to 13,260.96, 19,896.24 and 12,036.24

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Solution

The fourth proportional to 13,260.96, 19,896.24 and 12,036.24 is: 18,058.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.96 : 19,896.24 = 12,036.24 : x
  2. Step 2: Convert to fraction form
    13,260.96/19,896.24 = 12,036.24/x
  3. Step 3: Cross multiply
    13,260.96x = 19,896.24 × 12,036.24
  4. Step 4: Simplify right side
    13,260.96x = 239,475,919.74
  5. Step 5: Solve for x
    x = 239,475,919.74/13,260.96
  6. Step 6: Final answer
    x = 18,058.72

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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.