Home / 11,922.01-17,878.97-4,129

Finding the Fourth Proportional to 11,922.01, 17,878.97 and 4,129

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Solution

The fourth proportional to 11,922.01, 17,878.97 and 4,129 is: 6,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.01 : 17,878.97 = 4,129 : x
  2. Step 2: Convert to fraction form
    11,922.01/17,878.97 = 4,129/x
  3. Step 3: Cross multiply
    11,922.01x = 17,878.97 × 4,129
  4. Step 4: Simplify right side
    11,922.01x = 73,822,246.49
  5. Step 5: Solve for x
    x = 73,822,246.49/11,922.01
  6. Step 6: Final answer
    x = 6,192.10

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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.