Home / 12,243.36-16,895.49-6,939.89

Finding the Fourth Proportional to 12,243.36, 16,895.49 and 6,939.89

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Solution

The fourth proportional to 12,243.36, 16,895.49 and 6,939.89 is: 9,576.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.36 : 16,895.49 = 6,939.89 : x
  2. Step 2: Convert to fraction form
    12,243.36/16,895.49 = 6,939.89/x
  3. Step 3: Cross multiply
    12,243.36x = 16,895.49 × 6,939.89
  4. Step 4: Simplify right side
    12,243.36x = 117,252,757.62
  5. Step 5: Solve for x
    x = 117,252,757.62/12,243.36
  6. Step 6: Final answer
    x = 9,576.84

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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.