Home / 8,065.78-11,127.60-4,660.54

Finding the Fourth Proportional to 8,065.78, 11,127.60 and 4,660.54

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Solution

The fourth proportional to 8,065.78, 11,127.60 and 4,660.54 is: 6,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.78 : 11,127.60 = 4,660.54 : x
  2. Step 2: Convert to fraction form
    8,065.78/11,127.60 = 4,660.54/x
  3. Step 3: Cross multiply
    8,065.78x = 11,127.60 × 4,660.54
  4. Step 4: Simplify right side
    8,065.78x = 51,860,624.90
  5. Step 5: Solve for x
    x = 51,860,624.90/8,065.78
  6. Step 6: Final answer
    x = 6,429.71

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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.