Home / 13,694.22-18,899.40-8,392.56

Finding the Fourth Proportional to 13,694.22, 18,899.40 and 8,392.56

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Solution

The fourth proportional to 13,694.22, 18,899.40 and 8,392.56 is: 11,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.22 : 18,899.40 = 8,392.56 : x
  2. Step 2: Convert to fraction form
    13,694.22/18,899.40 = 8,392.56/x
  3. Step 3: Cross multiply
    13,694.22x = 18,899.40 × 8,392.56
  4. Step 4: Simplify right side
    13,694.22x = 158,614,348.46
  5. Step 5: Solve for x
    x = 158,614,348.46/13,694.22
  6. Step 6: Final answer
    x = 11,582.58

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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.