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Finding the Fourth Proportional to 7,683.55, 10,603.92 and 4,454.49

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Solution

The fourth proportional to 7,683.55, 10,603.92 and 4,454.49 is: 6,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,683.55 : 10,603.92 = 4,454.49 : x
  2. Step 2: Convert to fraction form
    7,683.55/10,603.92 = 4,454.49/x
  3. Step 3: Cross multiply
    7,683.55x = 10,603.92 × 4,454.49
  4. Step 4: Simplify right side
    7,683.55x = 47,235,055.60
  5. Step 5: Solve for x
    x = 47,235,055.60/7,683.55
  6. Step 6: Final answer
    x = 6,147.56

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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.