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Finding the Fourth Proportional to 8,447.83, 12,668.59 and 2,899.60

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Solution

The fourth proportional to 8,447.83, 12,668.59 and 2,899.60 is: 4,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.83 : 12,668.59 = 2,899.60 : x
  2. Step 2: Convert to fraction form
    8,447.83/12,668.59 = 2,899.60/x
  3. Step 3: Cross multiply
    8,447.83x = 12,668.59 × 2,899.60
  4. Step 4: Simplify right side
    8,447.83x = 36,733,815.52
  5. Step 5: Solve for x
    x = 36,733,815.52/8,447.83
  6. Step 6: Final answer
    x = 4,348.32

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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.