Home / 13,401.39-18,481.82-8,366.08

Finding the Fourth Proportional to 13,401.39, 18,481.82 and 8,366.08

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Solution

The fourth proportional to 13,401.39, 18,481.82 and 8,366.08 is: 11,537.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.39 : 18,481.82 = 8,366.08 : x
  2. Step 2: Convert to fraction form
    13,401.39/18,481.82 = 8,366.08/x
  3. Step 3: Cross multiply
    13,401.39x = 18,481.82 × 8,366.08
  4. Step 4: Simplify right side
    13,401.39x = 154,620,296.63
  5. Step 5: Solve for x
    x = 154,620,296.63/13,401.39
  6. Step 6: Final answer
    x = 11,537.63

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1.5x scale

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.