Home / 7,828.88-11,732.24-4,123.60

Finding the Fourth Proportional to 7,828.88, 11,732.24 and 4,123.60

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Solution

The fourth proportional to 7,828.88, 11,732.24 and 4,123.60 is: 6,179.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.88 : 11,732.24 = 4,123.60 : x
  2. Step 2: Convert to fraction form
    7,828.88/11,732.24 = 4,123.60/x
  3. Step 3: Cross multiply
    7,828.88x = 11,732.24 × 4,123.60
  4. Step 4: Simplify right side
    7,828.88x = 48,379,064.86
  5. Step 5: Solve for x
    x = 48,379,064.86/7,828.88
  6. Step 6: Final answer
    x = 6,179.56

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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.