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Finding the Fourth Proportional to 8,599.60, 12,883.38 and 7,221.88

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Solution

The fourth proportional to 8,599.60, 12,883.38 and 7,221.88 is: 10,819.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.60 : 12,883.38 = 7,221.88 : x
  2. Step 2: Convert to fraction form
    8,599.60/12,883.38 = 7,221.88/x
  3. Step 3: Cross multiply
    8,599.60x = 12,883.38 × 7,221.88
  4. Step 4: Simplify right side
    8,599.60x = 93,042,224.35
  5. Step 5: Solve for x
    x = 93,042,224.35/8,599.60
  6. Step 6: Final answer
    x = 10,819.37

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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.