Home / 13,508.64-18,644.34-8,058.05

Finding the Fourth Proportional to 13,508.64, 18,644.34 and 8,058.05

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Solution

The fourth proportional to 13,508.64, 18,644.34 and 8,058.05 is: 11,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.64 : 18,644.34 = 8,058.05 : x
  2. Step 2: Convert to fraction form
    13,508.64/18,644.34 = 8,058.05/x
  3. Step 3: Cross multiply
    13,508.64x = 18,644.34 × 8,058.05
  4. Step 4: Simplify right side
    13,508.64x = 150,236,930.72
  5. Step 5: Solve for x
    x = 150,236,930.72/13,508.64
  6. Step 6: Final answer
    x = 11,121.55

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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.