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Finding the Fourth Proportional to 12,076.88, 16,666.71 and 6,771.38

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Solution

The fourth proportional to 12,076.88, 16,666.71 and 6,771.38 is: 9,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.88 : 16,666.71 = 6,771.38 : x
  2. Step 2: Convert to fraction form
    12,076.88/16,666.71 = 6,771.38/x
  3. Step 3: Cross multiply
    12,076.88x = 16,666.71 × 6,771.38
  4. Step 4: Simplify right side
    12,076.88x = 112,856,626.76
  5. Step 5: Solve for x
    x = 112,856,626.76/12,076.88
  6. Step 6: Final answer
    x = 9,344.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.