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Finding the Fourth Proportional to 14,135.88, 21,183.78 and 10,408.86

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Solution

The fourth proportional to 14,135.88, 21,183.78 and 10,408.86 is: 15,598.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.88 : 21,183.78 = 10,408.86 : x
  2. Step 2: Convert to fraction form
    14,135.88/21,183.78 = 10,408.86/x
  3. Step 3: Cross multiply
    14,135.88x = 21,183.78 × 10,408.86
  4. Step 4: Simplify right side
    14,135.88x = 220,499,000.29
  5. Step 5: Solve for x
    x = 220,499,000.29/14,135.88
  6. Step 6: Final answer
    x = 15,598.53

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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.