Home / 11,921.31-17,876.70-6,373.62

Finding the Fourth Proportional to 11,921.31, 17,876.70 and 6,373.62

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Solution

The fourth proportional to 11,921.31, 17,876.70 and 6,373.62 is: 9,557.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.31 : 17,876.70 = 6,373.62 : x
  2. Step 2: Convert to fraction form
    11,921.31/17,876.70 = 6,373.62/x
  3. Step 3: Cross multiply
    11,921.31x = 17,876.70 × 6,373.62
  4. Step 4: Simplify right side
    11,921.31x = 113,939,292.65
  5. Step 5: Solve for x
    x = 113,939,292.65/11,921.31
  6. Step 6: Final answer
    x = 9,557.62

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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.