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Finding the Fourth Proportional to 11,612.61, 16,025.72 and 6,307.79

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Solution

The fourth proportional to 11,612.61, 16,025.72 and 6,307.79 is: 8,704.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.61 : 16,025.72 = 6,307.79 : x
  2. Step 2: Convert to fraction form
    11,612.61/16,025.72 = 6,307.79/x
  3. Step 3: Cross multiply
    11,612.61x = 16,025.72 × 6,307.79
  4. Step 4: Simplify right side
    11,612.61x = 101,086,764.69
  5. Step 5: Solve for x
    x = 101,086,764.69/11,612.61
  6. Step 6: Final answer
    x = 8,704.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.