Home / 13,768.72-19,000.56-7,481.14

Finding the Fourth Proportional to 13,768.72, 19,000.56 and 7,481.14

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Solution

The fourth proportional to 13,768.72, 19,000.56 and 7,481.14 is: 10,323.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.72 : 19,000.56 = 7,481.14 : x
  2. Step 2: Convert to fraction form
    13,768.72/19,000.56 = 7,481.14/x
  3. Step 3: Cross multiply
    13,768.72x = 19,000.56 × 7,481.14
  4. Step 4: Simplify right side
    13,768.72x = 142,145,849.44
  5. Step 5: Solve for x
    x = 142,145,849.44/13,768.72
  6. Step 6: Final answer
    x = 10,323.82

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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.