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Finding the Fourth Proportional to 12,046.60, 18,072.60 and 4,650.40

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Solution

The fourth proportional to 12,046.60, 18,072.60 and 4,650.40 is: 6,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,046.60 : 18,072.60 = 4,650.40 : x
  2. Step 2: Convert to fraction form
    12,046.60/18,072.60 = 4,650.40/x
  3. Step 3: Cross multiply
    12,046.60x = 18,072.60 × 4,650.40
  4. Step 4: Simplify right side
    12,046.60x = 84,044,819.04
  5. Step 5: Solve for x
    x = 84,044,819.04/12,046.60
  6. Step 6: Final answer
    x = 6,976.64

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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.