Home / 12,072.69-16,660.97-6,768.61

Finding the Fourth Proportional to 12,072.69, 16,660.97 and 6,768.61

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Solution

The fourth proportional to 12,072.69, 16,660.97 and 6,768.61 is: 9,341.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.69 : 16,660.97 = 6,768.61 : x
  2. Step 2: Convert to fraction form
    12,072.69/16,660.97 = 6,768.61/x
  3. Step 3: Cross multiply
    12,072.69x = 16,660.97 × 6,768.61
  4. Step 4: Simplify right side
    12,072.69x = 112,771,532.66
  5. Step 5: Solve for x
    x = 112,771,532.66/12,072.69
  6. Step 6: Final answer
    x = 9,341.04

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Half scale
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Double scale
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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.