Home / 12,825.63-19,234.62-5,429.97

Finding the Fourth Proportional to 12,825.63, 19,234.62 and 5,429.97

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Solution

The fourth proportional to 12,825.63, 19,234.62 and 5,429.97 is: 8,143.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,825.63 : 19,234.62 = 5,429.97 : x
  2. Step 2: Convert to fraction form
    12,825.63/19,234.62 = 5,429.97/x
  3. Step 3: Cross multiply
    12,825.63x = 19,234.62 × 5,429.97
  4. Step 4: Simplify right side
    12,825.63x = 104,443,409.56
  5. Step 5: Solve for x
    x = 104,443,409.56/12,825.63
  6. Step 6: Final answer
    x = 8,143.34

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1.5x scale

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.