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Finding the Fourth Proportional to 13,691.46, 20,538.78 and 4,804.05

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Solution

The fourth proportional to 13,691.46, 20,538.78 and 4,804.05 is: 7,206.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.46 : 20,538.78 = 4,804.05 : x
  2. Step 2: Convert to fraction form
    13,691.46/20,538.78 = 4,804.05/x
  3. Step 3: Cross multiply
    13,691.46x = 20,538.78 × 4,804.05
  4. Step 4: Simplify right side
    13,691.46x = 98,669,326.06
  5. Step 5: Solve for x
    x = 98,669,326.06/13,691.46
  6. Step 6: Final answer
    x = 7,206.63

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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.