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Finding the Fourth Proportional to 8,329.96, 12,498.39 and 3,647.55

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Solution

The fourth proportional to 8,329.96, 12,498.39 and 3,647.55 is: 5,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.96 : 12,498.39 = 3,647.55 : x
  2. Step 2: Convert to fraction form
    8,329.96/12,498.39 = 3,647.55/x
  3. Step 3: Cross multiply
    8,329.96x = 12,498.39 × 3,647.55
  4. Step 4: Simplify right side
    8,329.96x = 45,588,502.44
  5. Step 5: Solve for x
    x = 45,588,502.44/8,329.96
  6. Step 6: Final answer
    x = 5,472.84

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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.