Home / 11,122.98-15,362.31-7,580.04

Finding the Fourth Proportional to 11,122.98, 15,362.31 and 7,580.04

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Solution

The fourth proportional to 11,122.98, 15,362.31 and 7,580.04 is: 10,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.98 : 15,362.31 = 7,580.04 : x
  2. Step 2: Convert to fraction form
    11,122.98/15,362.31 = 7,580.04/x
  3. Step 3: Cross multiply
    11,122.98x = 15,362.31 × 7,580.04
  4. Step 4: Simplify right side
    11,122.98x = 116,446,924.29
  5. Step 5: Solve for x
    x = 116,446,924.29/11,122.98
  6. Step 6: Final answer
    x = 10,469.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.