Home / 12,368.21-18,553.37-6,825.38

Finding the Fourth Proportional to 12,368.21, 18,553.37 and 6,825.38

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Solution

The fourth proportional to 12,368.21, 18,553.37 and 6,825.38 is: 10,238.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.21 : 18,553.37 = 6,825.38 : x
  2. Step 2: Convert to fraction form
    12,368.21/18,553.37 = 6,825.38/x
  3. Step 3: Cross multiply
    12,368.21x = 18,553.37 × 6,825.38
  4. Step 4: Simplify right side
    12,368.21x = 126,633,673.64
  5. Step 5: Solve for x
    x = 126,633,673.64/12,368.21
  6. Step 6: Final answer
    x = 10,238.65

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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.