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Finding the Fourth Proportional to 8,296.60, 12,459.30 and 4,408.60

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Solution

The fourth proportional to 8,296.60, 12,459.30 and 4,408.60 is: 6,620.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,296.60 : 12,459.30 = 4,408.60 : x
  2. Step 2: Convert to fraction form
    8,296.60/12,459.30 = 4,408.60/x
  3. Step 3: Cross multiply
    8,296.60x = 12,459.30 × 4,408.60
  4. Step 4: Simplify right side
    8,296.60x = 54,928,069.98
  5. Step 5: Solve for x
    x = 54,928,069.98/8,296.60
  6. Step 6: Final answer
    x = 6,620.55

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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.