Home / 13,331.10-19,996.44-5,427.90

Finding the Fourth Proportional to 13,331.10, 19,996.44 and 5,427.90

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Solution

The fourth proportional to 13,331.10, 19,996.44 and 5,427.90 is: 8,141.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.10 : 19,996.44 = 5,427.90 : x
  2. Step 2: Convert to fraction form
    13,331.10/19,996.44 = 5,427.90/x
  3. Step 3: Cross multiply
    13,331.10x = 19,996.44 × 5,427.90
  4. Step 4: Simplify right side
    13,331.10x = 108,538,676.68
  5. Step 5: Solve for x
    x = 108,538,676.68/13,331.10
  6. Step 6: Final answer
    x = 8,141.76

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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.