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Finding the Fourth Proportional to 8,329.47, 12,485.49 and 3,941.70

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Solution

The fourth proportional to 8,329.47, 12,485.49 and 3,941.70 is: 5,908.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.47 : 12,485.49 = 3,941.70 : x
  2. Step 2: Convert to fraction form
    8,329.47/12,485.49 = 3,941.70/x
  3. Step 3: Cross multiply
    8,329.47x = 12,485.49 × 3,941.70
  4. Step 4: Simplify right side
    8,329.47x = 49,214,055.93
  5. Step 5: Solve for x
    x = 49,214,055.93/8,329.47
  6. Step 6: Final answer
    x = 5,908.43

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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.