Home / 13,159.72-19,732.24-4,389.88

Finding the Fourth Proportional to 13,159.72, 19,732.24 and 4,389.88

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Solution

The fourth proportional to 13,159.72, 19,732.24 and 4,389.88 is: 6,582.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.72 : 19,732.24 = 4,389.88 : x
  2. Step 2: Convert to fraction form
    13,159.72/19,732.24 = 4,389.88/x
  3. Step 3: Cross multiply
    13,159.72x = 19,732.24 × 4,389.88
  4. Step 4: Simplify right side
    13,159.72x = 86,622,165.73
  5. Step 5: Solve for x
    x = 86,622,165.73/13,159.72
  6. Step 6: Final answer
    x = 6,582.37

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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.