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Finding the Fourth Proportional to 17,046.40, 25,540.80 and 8,262.40

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Solution

The fourth proportional to 17,046.40, 25,540.80 and 8,262.40 is: 12,379.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,046.40 : 25,540.80 = 8,262.40 : x
  2. Step 2: Convert to fraction form
    17,046.40/25,540.80 = 8,262.40/x
  3. Step 3: Cross multiply
    17,046.40x = 25,540.80 × 8,262.40
  4. Step 4: Simplify right side
    17,046.40x = 211,028,305.92
  5. Step 5: Solve for x
    x = 211,028,305.92/17,046.40
  6. Step 6: Final answer
    x = 12,379.64

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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.