Home / 11,286.72-15,570.36-7,092

Finding the Fourth Proportional to 11,286.72, 15,570.36 and 7,092

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Solution

The fourth proportional to 11,286.72, 15,570.36 and 7,092 is: 9,783.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.72 : 15,570.36 = 7,092 : x
  2. Step 2: Convert to fraction form
    11,286.72/15,570.36 = 7,092/x
  3. Step 3: Cross multiply
    11,286.72x = 15,570.36 × 7,092
  4. Step 4: Simplify right side
    11,286.72x = 110,424,993.12
  5. Step 5: Solve for x
    x = 110,424,993.12/11,286.72
  6. Step 6: Final answer
    x = 9,783.62

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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.