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Finding the Fourth Proportional to 12,496.33, 18,720.82 and 6,344.65

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Solution

The fourth proportional to 12,496.33, 18,720.82 and 6,344.65 is: 9,504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496.33 : 18,720.82 = 6,344.65 : x
  2. Step 2: Convert to fraction form
    12,496.33/18,720.82 = 6,344.65/x
  3. Step 3: Cross multiply
    12,496.33x = 18,720.82 × 6,344.65
  4. Step 4: Simplify right side
    12,496.33x = 118,777,018.89
  5. Step 5: Solve for x
    x = 118,777,018.89/12,496.33
  6. Step 6: Final answer
    x = 9,504.95

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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.