Home / 11,981.10-17,973.74-4,083.19

Finding the Fourth Proportional to 11,981.10, 17,973.74 and 4,083.19

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Solution

The fourth proportional to 11,981.10, 17,973.74 and 4,083.19 is: 6,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.10 : 17,973.74 = 4,083.19 : x
  2. Step 2: Convert to fraction form
    11,981.10/17,973.74 = 4,083.19/x
  3. Step 3: Cross multiply
    11,981.10x = 17,973.74 × 4,083.19
  4. Step 4: Simplify right side
    11,981.10x = 73,390,195.43
  5. Step 5: Solve for x
    x = 73,390,195.43/11,981.10
  6. Step 6: Final answer
    x = 6,125.50

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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.