Home / 12,486.37-18,723.29-4,163.44

Finding the Fourth Proportional to 12,486.37, 18,723.29 and 4,163.44

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Solution

The fourth proportional to 12,486.37, 18,723.29 and 4,163.44 is: 6,243.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.37 : 18,723.29 = 4,163.44 : x
  2. Step 2: Convert to fraction form
    12,486.37/18,723.29 = 4,163.44/x
  3. Step 3: Cross multiply
    12,486.37x = 18,723.29 × 4,163.44
  4. Step 4: Simplify right side
    12,486.37x = 77,953,302.31
  5. Step 5: Solve for x
    x = 77,953,302.31/12,486.37
  6. Step 6: Final answer
    x = 6,243.07

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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.