Home / 13,286.36-19,929.60-5,495.42

Finding the Fourth Proportional to 13,286.36, 19,929.60 and 5,495.42

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Solution

The fourth proportional to 13,286.36, 19,929.60 and 5,495.42 is: 8,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.36 : 19,929.60 = 5,495.42 : x
  2. Step 2: Convert to fraction form
    13,286.36/19,929.60 = 5,495.42/x
  3. Step 3: Cross multiply
    13,286.36x = 19,929.60 × 5,495.42
  4. Step 4: Simplify right side
    13,286.36x = 109,521,522.43
  5. Step 5: Solve for x
    x = 109,521,522.43/13,286.36
  6. Step 6: Final answer
    x = 8,243.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.