Home / 13,208.12-18,227.38-8,493.96

Finding the Fourth Proportional to 13,208.12, 18,227.38 and 8,493.96

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Solution

The fourth proportional to 13,208.12, 18,227.38 and 8,493.96 is: 11,721.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.12 : 18,227.38 = 8,493.96 : x
  2. Step 2: Convert to fraction form
    13,208.12/18,227.38 = 8,493.96/x
  3. Step 3: Cross multiply
    13,208.12x = 18,227.38 × 8,493.96
  4. Step 4: Simplify right side
    13,208.12x = 154,822,636.62
  5. Step 5: Solve for x
    x = 154,822,636.62/13,208.12
  6. Step 6: Final answer
    x = 11,721.78

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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.