Home / 13,231.25-19,828.34-9,942.24

Finding the Fourth Proportional to 13,231.25, 19,828.34 and 9,942.24

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Solution

The fourth proportional to 13,231.25, 19,828.34 and 9,942.24 is: 14,899.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.25 : 19,828.34 = 9,942.24 : x
  2. Step 2: Convert to fraction form
    13,231.25/19,828.34 = 9,942.24/x
  3. Step 3: Cross multiply
    13,231.25x = 19,828.34 × 9,942.24
  4. Step 4: Simplify right side
    13,231.25x = 197,138,065.37
  5. Step 5: Solve for x
    x = 197,138,065.37/13,231.25
  6. Step 6: Final answer
    x = 14,899.43

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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.