Home / 11,925.18-16,456.71-6,620.22

Finding the Fourth Proportional to 11,925.18, 16,456.71 and 6,620.22

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Solution

The fourth proportional to 11,925.18, 16,456.71 and 6,620.22 is: 9,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.18 : 16,456.71 = 6,620.22 : x
  2. Step 2: Convert to fraction form
    11,925.18/16,456.71 = 6,620.22/x
  3. Step 3: Cross multiply
    11,925.18x = 16,456.71 × 6,620.22
  4. Step 4: Simplify right side
    11,925.18x = 108,947,040.68
  5. Step 5: Solve for x
    x = 108,947,040.68/11,925.18
  6. Step 6: Final answer
    x = 9,135.88

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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.