Home / 11,303.28-16,944.91-4,278.40

Finding the Fourth Proportional to 11,303.28, 16,944.91 and 4,278.40

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Solution

The fourth proportional to 11,303.28, 16,944.91 and 4,278.40 is: 6,413.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,303.28 : 16,944.91 = 4,278.40 : x
  2. Step 2: Convert to fraction form
    11,303.28/16,944.91 = 4,278.40/x
  3. Step 3: Cross multiply
    11,303.28x = 16,944.91 × 4,278.40
  4. Step 4: Simplify right side
    11,303.28x = 72,497,049.89
  5. Step 5: Solve for x
    x = 72,497,049.89/11,303.28
  6. Step 6: Final answer
    x = 6,413.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.