Home / 12,256.14-18,386.97-3,936.63

Finding the Fourth Proportional to 12,256.14, 18,386.97 and 3,936.63

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Solution

The fourth proportional to 12,256.14, 18,386.97 and 3,936.63 is: 5,905.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.14 : 18,386.97 = 3,936.63 : x
  2. Step 2: Convert to fraction form
    12,256.14/18,386.97 = 3,936.63/x
  3. Step 3: Cross multiply
    12,256.14x = 18,386.97 × 3,936.63
  4. Step 4: Simplify right side
    12,256.14x = 72,382,751.90
  5. Step 5: Solve for x
    x = 72,382,751.90/12,256.14
  6. Step 6: Final answer
    x = 5,905.83

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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.