Home / 7,623.86-11,443.01-3,928.64

Finding the Fourth Proportional to 7,623.86, 11,443.01 and 3,928.64

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Solution

The fourth proportional to 7,623.86, 11,443.01 and 3,928.64 is: 5,896.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.86 : 11,443.01 = 3,928.64 : x
  2. Step 2: Convert to fraction form
    7,623.86/11,443.01 = 3,928.64/x
  3. Step 3: Cross multiply
    7,623.86x = 11,443.01 × 3,928.64
  4. Step 4: Simplify right side
    7,623.86x = 44,955,389.95
  5. Step 5: Solve for x
    x = 44,955,389.95/7,623.86
  6. Step 6: Final answer
    x = 5,896.67

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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.