Home / 11,981.79-17,974.85-4,083.87

Finding the Fourth Proportional to 11,981.79, 17,974.85 and 4,083.87

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Solution

The fourth proportional to 11,981.79, 17,974.85 and 4,083.87 is: 6,126.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.79 : 17,974.85 = 4,083.87 : x
  2. Step 2: Convert to fraction form
    11,981.79/17,974.85 = 4,083.87/x
  3. Step 3: Cross multiply
    11,981.79x = 17,974.85 × 4,083.87
  4. Step 4: Simplify right side
    11,981.79x = 73,406,950.67
  5. Step 5: Solve for x
    x = 73,406,950.67/11,981.79
  6. Step 6: Final answer
    x = 6,126.54

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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.