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Finding the Fourth Proportional to 7,640.04, 11,477.60 and 5,393.73

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Solution

The fourth proportional to 7,640.04, 11,477.60 and 5,393.73 is: 8,102.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.04 : 11,477.60 = 5,393.73 : x
  2. Step 2: Convert to fraction form
    7,640.04/11,477.60 = 5,393.73/x
  3. Step 3: Cross multiply
    7,640.04x = 11,477.60 × 5,393.73
  4. Step 4: Simplify right side
    7,640.04x = 61,907,048.48
  5. Step 5: Solve for x
    x = 61,907,048.48/7,640.04
  6. Step 6: Final answer
    x = 8,102.97

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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.