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Finding the Fourth Proportional to 12,262.62, 18,403.34 and 8,704.49

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Solution

The fourth proportional to 12,262.62, 18,403.34 and 8,704.49 is: 13,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.62 : 18,403.34 = 8,704.49 : x
  2. Step 2: Convert to fraction form
    12,262.62/18,403.34 = 8,704.49/x
  3. Step 3: Cross multiply
    12,262.62x = 18,403.34 × 8,704.49
  4. Step 4: Simplify right side
    12,262.62x = 160,191,553.46
  5. Step 5: Solve for x
    x = 160,191,553.46/12,262.62
  6. Step 6: Final answer
    x = 13,063.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.