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Finding the Fourth Proportional to 36,693, 55,040.04 and 8,991

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Solution

The fourth proportional to 36,693, 55,040.04 and 8,991 is: 13,486.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,693 : 55,040.04 = 8,991 : x
  2. Step 2: Convert to fraction form
    36,693/55,040.04 = 8,991/x
  3. Step 3: Cross multiply
    36,693x = 55,040.04 × 8,991
  4. Step 4: Simplify right side
    36,693x = 494,864,999.64
  5. Step 5: Solve for x
    x = 494,864,999.64/36,693
  6. Step 6: Final answer
    x = 13,486.63

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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.