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Finding the Fourth Proportional to 11,984.60, 17,980.41 and 3,551.33

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Solution

The fourth proportional to 11,984.60, 17,980.41 and 3,551.33 is: 5,328.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.60 : 17,980.41 = 3,551.33 : x
  2. Step 2: Convert to fraction form
    11,984.60/17,980.41 = 3,551.33/x
  3. Step 3: Cross multiply
    11,984.60x = 17,980.41 × 3,551.33
  4. Step 4: Simplify right side
    11,984.60x = 63,854,369.45
  5. Step 5: Solve for x
    x = 63,854,369.45/11,984.60
  6. Step 6: Final answer
    x = 5,328.04

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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.