Home / 13,443.72-20,171.36-4,673.86

Finding the Fourth Proportional to 13,443.72, 20,171.36 and 4,673.86

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Solution

The fourth proportional to 13,443.72, 20,171.36 and 4,673.86 is: 7,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.72 : 20,171.36 = 4,673.86 : x
  2. Step 2: Convert to fraction form
    13,443.72/20,171.36 = 4,673.86/x
  3. Step 3: Cross multiply
    13,443.72x = 20,171.36 × 4,673.86
  4. Step 4: Simplify right side
    13,443.72x = 94,278,112.65
  5. Step 5: Solve for x
    x = 94,278,112.65/13,443.72
  6. Step 6: Final answer
    x = 7,012.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.