Home / 11,917.08-17,877.72-4,020.36

Finding the Fourth Proportional to 11,917.08, 17,877.72 and 4,020.36

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Solution

The fourth proportional to 11,917.08, 17,877.72 and 4,020.36 is: 6,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.08 : 17,877.72 = 4,020.36 : x
  2. Step 2: Convert to fraction form
    11,917.08/17,877.72 = 4,020.36/x
  3. Step 3: Cross multiply
    11,917.08x = 17,877.72 × 4,020.36
  4. Step 4: Simplify right side
    11,917.08x = 71,874,870.38
  5. Step 5: Solve for x
    x = 71,874,870.38/11,917.08
  6. Step 6: Final answer
    x = 6,031.25

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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.