Home / 12,354.19-18,531.32-3,589.31

Finding the Fourth Proportional to 12,354.19, 18,531.32 and 3,589.31

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Solution

The fourth proportional to 12,354.19, 18,531.32 and 3,589.31 is: 5,383.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.19 : 18,531.32 = 3,589.31 : x
  2. Step 2: Convert to fraction form
    12,354.19/18,531.32 = 3,589.31/x
  3. Step 3: Cross multiply
    12,354.19x = 18,531.32 × 3,589.31
  4. Step 4: Simplify right side
    12,354.19x = 66,514,680.57
  5. Step 5: Solve for x
    x = 66,514,680.57/12,354.19
  6. Step 6: Final answer
    x = 5,383.98

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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.