Home / 8,078.42-11,145.54-6,583.77

Finding the Fourth Proportional to 8,078.42, 11,145.54 and 6,583.77

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Solution

The fourth proportional to 8,078.42, 11,145.54 and 6,583.77 is: 9,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.42 : 11,145.54 = 6,583.77 : x
  2. Step 2: Convert to fraction form
    8,078.42/11,145.54 = 6,583.77/x
  3. Step 3: Cross multiply
    8,078.42x = 11,145.54 × 6,583.77
  4. Step 4: Simplify right side
    8,078.42x = 73,379,671.89
  5. Step 5: Solve for x
    x = 73,379,671.89/8,078.42
  6. Step 6: Final answer
    x = 9,083.42

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.