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Finding the Fourth Proportional to 8,328.79, 12,493.05 and 3,949.39

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Solution

The fourth proportional to 8,328.79, 12,493.05 and 3,949.39 is: 5,924.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.79 : 12,493.05 = 3,949.39 : x
  2. Step 2: Convert to fraction form
    8,328.79/12,493.05 = 3,949.39/x
  3. Step 3: Cross multiply
    8,328.79x = 12,493.05 × 3,949.39
  4. Step 4: Simplify right side
    8,328.79x = 49,339,926.74
  5. Step 5: Solve for x
    x = 49,339,926.74/8,328.79
  6. Step 6: Final answer
    x = 5,924.02

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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.