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Finding the Fourth Proportional to 13,354.65, 18,429.42 and 8,049.54

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Solution

The fourth proportional to 13,354.65, 18,429.42 and 8,049.54 is: 11,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.65 : 18,429.42 = 8,049.54 : x
  2. Step 2: Convert to fraction form
    13,354.65/18,429.42 = 8,049.54/x
  3. Step 3: Cross multiply
    13,354.65x = 18,429.42 × 8,049.54
  4. Step 4: Simplify right side
    13,354.65x = 148,348,353.47
  5. Step 5: Solve for x
    x = 148,348,353.47/13,354.65
  6. Step 6: Final answer
    x = 11,108.37

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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.