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Finding the Fourth Proportional to 11,000, 15,173.79 and 6,519.35

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Solution

The fourth proportional to 11,000, 15,173.79 and 6,519.35 is: 8,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000 : 15,173.79 = 6,519.35 : x
  2. Step 2: Convert to fraction form
    11,000/15,173.79 = 6,519.35/x
  3. Step 3: Cross multiply
    11,000x = 15,173.79 × 6,519.35
  4. Step 4: Simplify right side
    11,000x = 98,923,247.84
  5. Step 5: Solve for x
    x = 98,923,247.84/11,000
  6. Step 6: Final answer
    x = 8,993.02

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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.