Home / 12,383.07-18,558.15-10,731.87

Finding the Fourth Proportional to 12,383.07, 18,558.15 and 10,731.87

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Solution

The fourth proportional to 12,383.07, 18,558.15 and 10,731.87 is: 16,083.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.07 : 18,558.15 = 10,731.87 : x
  2. Step 2: Convert to fraction form
    12,383.07/18,558.15 = 10,731.87/x
  3. Step 3: Cross multiply
    12,383.07x = 18,558.15 × 10,731.87
  4. Step 4: Simplify right side
    12,383.07x = 199,163,653.24
  5. Step 5: Solve for x
    x = 199,163,653.24/12,383.07
  6. Step 6: Final answer
    x = 16,083.54

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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.