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Finding the Fourth Proportional to 9,928.80, 13,702.14 and 5,452.92

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Solution

The fourth proportional to 9,928.80, 13,702.14 and 5,452.92 is: 7,525.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.80 : 13,702.14 = 5,452.92 : x
  2. Step 2: Convert to fraction form
    9,928.80/13,702.14 = 5,452.92/x
  3. Step 3: Cross multiply
    9,928.80x = 13,702.14 × 5,452.92
  4. Step 4: Simplify right side
    9,928.80x = 74,716,673.25
  5. Step 5: Solve for x
    x = 74,716,673.25/9,928.80
  6. Step 6: Final answer
    x = 7,525.25

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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.