Home / 12,018.73-16,584.91-6,640.94

Finding the Fourth Proportional to 12,018.73, 16,584.91 and 6,640.94

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Solution

The fourth proportional to 12,018.73, 16,584.91 and 6,640.94 is: 9,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.73 : 16,584.91 = 6,640.94 : x
  2. Step 2: Convert to fraction form
    12,018.73/16,584.91 = 6,640.94/x
  3. Step 3: Cross multiply
    12,018.73x = 16,584.91 × 6,640.94
  4. Step 4: Simplify right side
    12,018.73x = 110,139,392.22
  5. Step 5: Solve for x
    x = 110,139,392.22/12,018.73
  6. Step 6: Final answer
    x = 9,163.98

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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.