Home / 9,729.92-13,413.30-6,930.56

Finding the Fourth Proportional to 9,729.92, 13,413.30 and 6,930.56

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Solution

The fourth proportional to 9,729.92, 13,413.30 and 6,930.56 is: 9,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,729.92 : 13,413.30 = 6,930.56 : x
  2. Step 2: Convert to fraction form
    9,729.92/13,413.30 = 6,930.56/x
  3. Step 3: Cross multiply
    9,729.92x = 13,413.30 × 6,930.56
  4. Step 4: Simplify right side
    9,729.92x = 92,961,687.99
  5. Step 5: Solve for x
    x = 92,961,687.99/9,729.92
  6. Step 6: Final answer
    x = 9,554.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.