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Finding the Fourth Proportional to 12,404.88, 18,615.60 and 4,614.48

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Solution

The fourth proportional to 12,404.88, 18,615.60 and 4,614.48 is: 6,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,404.88 : 18,615.60 = 4,614.48 : x
  2. Step 2: Convert to fraction form
    12,404.88/18,615.60 = 4,614.48/x
  3. Step 3: Cross multiply
    12,404.88x = 18,615.60 × 4,614.48
  4. Step 4: Simplify right side
    12,404.88x = 85,901,313.89
  5. Step 5: Solve for x
    x = 85,901,313.89/12,404.88
  6. Step 6: Final answer
    x = 6,924.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.