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Finding the Fourth Proportional to 12,668.61, 19,005.72 and 4,348.44

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Solution

The fourth proportional to 12,668.61, 19,005.72 and 4,348.44 is: 6,523.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.61 : 19,005.72 = 4,348.44 : x
  2. Step 2: Convert to fraction form
    12,668.61/19,005.72 = 4,348.44/x
  3. Step 3: Cross multiply
    12,668.61x = 19,005.72 × 4,348.44
  4. Step 4: Simplify right side
    12,668.61x = 82,645,233.08
  5. Step 5: Solve for x
    x = 82,645,233.08/12,668.61
  6. Step 6: Final answer
    x = 6,523.62

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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.