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Finding the Fourth Proportional to 13,383.65, 18,468.83 and 7,333.88

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Solution

The fourth proportional to 13,383.65, 18,468.83 and 7,333.88 is: 10,120.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.65 : 18,468.83 = 7,333.88 : x
  2. Step 2: Convert to fraction form
    13,383.65/18,468.83 = 7,333.88/x
  3. Step 3: Cross multiply
    13,383.65x = 18,468.83 × 7,333.88
  4. Step 4: Simplify right side
    13,383.65x = 135,448,108.95
  5. Step 5: Solve for x
    x = 135,448,108.95/13,383.65
  6. Step 6: Final answer
    x = 10,120.41

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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.