Home / 12,146.46-16,640.72-11,691.41

Finding the Fourth Proportional to 12,146.46, 16,640.72 and 11,691.41

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Solution

The fourth proportional to 12,146.46, 16,640.72 and 11,691.41 is: 16,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.46 : 16,640.72 = 11,691.41 : x
  2. Step 2: Convert to fraction form
    12,146.46/16,640.72 = 11,691.41/x
  3. Step 3: Cross multiply
    12,146.46x = 16,640.72 × 11,691.41
  4. Step 4: Simplify right side
    12,146.46x = 194,553,489.92
  5. Step 5: Solve for x
    x = 194,553,489.92/12,146.46
  6. Step 6: Final answer
    x = 16,017.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.