Home / 7,623.61-11,442.63-3,928.39

Finding the Fourth Proportional to 7,623.61, 11,442.63 and 3,928.39

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Solution

The fourth proportional to 7,623.61, 11,442.63 and 3,928.39 is: 5,896.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.61 : 11,442.63 = 3,928.39 : x
  2. Step 2: Convert to fraction form
    7,623.61/11,442.63 = 3,928.39/x
  3. Step 3: Cross multiply
    7,623.61x = 11,442.63 × 3,928.39
  4. Step 4: Simplify right side
    7,623.61x = 44,951,113.27
  5. Step 5: Solve for x
    x = 44,951,113.27/7,623.61
  6. Step 6: Final answer
    x = 5,896.30

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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.