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Finding the Fourth Proportional to 11,775.77, 16,249.78 and 6,470.47

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Solution

The fourth proportional to 11,775.77, 16,249.78 and 6,470.47 is: 8,928.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.77 : 16,249.78 = 6,470.47 : x
  2. Step 2: Convert to fraction form
    11,775.77/16,249.78 = 6,470.47/x
  3. Step 3: Cross multiply
    11,775.77x = 16,249.78 × 6,470.47
  4. Step 4: Simplify right side
    11,775.77x = 105,143,714.00
  5. Step 5: Solve for x
    x = 105,143,714.00/11,775.77
  6. Step 6: Final answer
    x = 8,928.82

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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.