Home / 13,398.24-18,495.92-8,929.44

Finding the Fourth Proportional to 13,398.24, 18,495.92 and 8,929.44

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Solution

The fourth proportional to 13,398.24, 18,495.92 and 8,929.44 is: 12,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.24 : 18,495.92 = 8,929.44 : x
  2. Step 2: Convert to fraction form
    13,398.24/18,495.92 = 8,929.44/x
  3. Step 3: Cross multiply
    13,398.24x = 18,495.92 × 8,929.44
  4. Step 4: Simplify right side
    13,398.24x = 165,158,207.88
  5. Step 5: Solve for x
    x = 165,158,207.88/13,398.24
  6. Step 6: Final answer
    x = 12,326.86

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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.