Home / 11,316.19-16,974.41-3,418.77

Finding the Fourth Proportional to 11,316.19, 16,974.41 and 3,418.77

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Solution

The fourth proportional to 11,316.19, 16,974.41 and 3,418.77 is: 5,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.19 : 16,974.41 = 3,418.77 : x
  2. Step 2: Convert to fraction form
    11,316.19/16,974.41 = 3,418.77/x
  3. Step 3: Cross multiply
    11,316.19x = 16,974.41 × 3,418.77
  4. Step 4: Simplify right side
    11,316.19x = 58,031,501.71
  5. Step 5: Solve for x
    x = 58,031,501.71/11,316.19
  6. Step 6: Final answer
    x = 5,128.19

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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.