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Finding the Fourth Proportional to 9,936, 14,905.56 and 3,360.64

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Solution

The fourth proportional to 9,936, 14,905.56 and 3,360.64 is: 5,041.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,936 : 14,905.56 = 3,360.64 : x
  2. Step 2: Convert to fraction form
    9,936/14,905.56 = 3,360.64/x
  3. Step 3: Cross multiply
    9,936x = 14,905.56 × 3,360.64
  4. Step 4: Simplify right side
    9,936x = 50,092,221.16
  5. Step 5: Solve for x
    x = 50,092,221.16/9,936
  6. Step 6: Final answer
    x = 5,041.49

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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.