Home / 7,339.72-11,016.20-4,571.78

Finding the Fourth Proportional to 7,339.72, 11,016.20 and 4,571.78

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Solution

The fourth proportional to 7,339.72, 11,016.20 and 4,571.78 is: 6,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.72 : 11,016.20 = 4,571.78 : x
  2. Step 2: Convert to fraction form
    7,339.72/11,016.20 = 4,571.78/x
  3. Step 3: Cross multiply
    7,339.72x = 11,016.20 × 4,571.78
  4. Step 4: Simplify right side
    7,339.72x = 50,363,642.84
  5. Step 5: Solve for x
    x = 50,363,642.84/7,339.72
  6. Step 6: Final answer
    x = 6,861.79

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1.5x scale

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.