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Finding the Fourth Proportional to 11,453, 17,181.95 and 3,555.35

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Solution

The fourth proportional to 11,453, 17,181.95 and 3,555.35 is: 5,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,453 : 17,181.95 = 3,555.35 : x
  2. Step 2: Convert to fraction form
    11,453/17,181.95 = 3,555.35/x
  3. Step 3: Cross multiply
    11,453x = 17,181.95 × 3,555.35
  4. Step 4: Simplify right side
    11,453x = 61,087,845.93
  5. Step 5: Solve for x
    x = 61,087,845.93/11,453
  6. Step 6: Final answer
    x = 5,333.79

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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.