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Finding the Fourth Proportional to 8,117.94, 12,176.94 and 2,274.60

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Solution

The fourth proportional to 8,117.94, 12,176.94 and 2,274.60 is: 3,411.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.94 : 12,176.94 = 2,274.60 : x
  2. Step 2: Convert to fraction form
    8,117.94/12,176.94 = 2,274.60/x
  3. Step 3: Cross multiply
    8,117.94x = 12,176.94 × 2,274.60
  4. Step 4: Simplify right side
    8,117.94x = 27,697,667.72
  5. Step 5: Solve for x
    x = 27,697,667.72/8,117.94
  6. Step 6: Final answer
    x = 3,411.91

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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.