Home / 14,572.72-20,112.06-8,286.04

Finding the Fourth Proportional to 14,572.72, 20,112.06 and 8,286.04

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Solution

The fourth proportional to 14,572.72, 20,112.06 and 8,286.04 is: 11,435.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,572.72 : 20,112.06 = 8,286.04 : x
  2. Step 2: Convert to fraction form
    14,572.72/20,112.06 = 8,286.04/x
  3. Step 3: Cross multiply
    14,572.72x = 20,112.06 × 8,286.04
  4. Step 4: Simplify right side
    14,572.72x = 166,649,333.64
  5. Step 5: Solve for x
    x = 166,649,333.64/14,572.72
  6. Step 6: Final answer
    x = 11,435.71

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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.