Home / 12,481-18,721.41-5,083.72

Finding the Fourth Proportional to 12,481, 18,721.41 and 5,083.72

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Solution

The fourth proportional to 12,481, 18,721.41 and 5,083.72 is: 7,625.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481 : 18,721.41 = 5,083.72 : x
  2. Step 2: Convert to fraction form
    12,481/18,721.41 = 5,083.72/x
  3. Step 3: Cross multiply
    12,481x = 18,721.41 × 5,083.72
  4. Step 4: Simplify right side
    12,481x = 95,174,406.45
  5. Step 5: Solve for x
    x = 95,174,406.45/12,481
  6. Step 6: Final answer
    x = 7,625.54

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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.