Home / 6,715.48-9,269.34-3,921.64

Finding the Fourth Proportional to 6,715.48, 9,269.34 and 3,921.64

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Solution

The fourth proportional to 6,715.48, 9,269.34 and 3,921.64 is: 5,413.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,715.48 : 9,269.34 = 3,921.64 : x
  2. Step 2: Convert to fraction form
    6,715.48/9,269.34 = 3,921.64/x
  3. Step 3: Cross multiply
    6,715.48x = 9,269.34 × 3,921.64
  4. Step 4: Simplify right side
    6,715.48x = 36,351,014.52
  5. Step 5: Solve for x
    x = 36,351,014.52/6,715.48
  6. Step 6: Final answer
    x = 5,413.02

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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.