Home / 14,640.66-20,202.81-8,671.37

Finding the Fourth Proportional to 14,640.66, 20,202.81 and 8,671.37

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Solution

The fourth proportional to 14,640.66, 20,202.81 and 8,671.37 is: 11,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.66 : 20,202.81 = 8,671.37 : x
  2. Step 2: Convert to fraction form
    14,640.66/20,202.81 = 8,671.37/x
  3. Step 3: Cross multiply
    14,640.66x = 20,202.81 × 8,671.37
  4. Step 4: Simplify right side
    14,640.66x = 175,185,939.54
  5. Step 5: Solve for x
    x = 175,185,939.54/14,640.66
  6. Step 6: Final answer
    x = 11,965.71

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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.