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Finding the Fourth Proportional to 13,836, 19,078.59 and 9,351.96

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Solution

The fourth proportional to 13,836, 19,078.59 and 9,351.96 is: 12,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836 : 19,078.59 = 9,351.96 : x
  2. Step 2: Convert to fraction form
    13,836/19,078.59 = 9,351.96/x
  3. Step 3: Cross multiply
    13,836x = 19,078.59 × 9,351.96
  4. Step 4: Simplify right side
    13,836x = 178,422,210.54
  5. Step 5: Solve for x
    x = 178,422,210.54/13,836
  6. Step 6: Final answer
    x = 12,895.51

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Why These Related Problems?

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