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Finding the Fourth Proportional to 12,676.40, 17,469.24 and 11,017.52

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Solution

The fourth proportional to 12,676.40, 17,469.24 and 11,017.52 is: 15,183.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,676.40 : 17,469.24 = 11,017.52 : x
  2. Step 2: Convert to fraction form
    12,676.40/17,469.24 = 11,017.52/x
  3. Step 3: Cross multiply
    12,676.40x = 17,469.24 × 11,017.52
  4. Step 4: Simplify right side
    12,676.40x = 192,467,701.08
  5. Step 5: Solve for x
    x = 192,467,701.08/12,676.40
  6. Step 6: Final answer
    x = 15,183.15

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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.