Home / 11,490.40-17,231.34-4,092.89

Finding the Fourth Proportional to 11,490.40, 17,231.34 and 4,092.89

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Solution

The fourth proportional to 11,490.40, 17,231.34 and 4,092.89 is: 6,137.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.40 : 17,231.34 = 4,092.89 : x
  2. Step 2: Convert to fraction form
    11,490.40/17,231.34 = 4,092.89/x
  3. Step 3: Cross multiply
    11,490.40x = 17,231.34 × 4,092.89
  4. Step 4: Simplify right side
    11,490.40x = 70,525,979.17
  5. Step 5: Solve for x
    x = 70,525,979.17/11,490.40
  6. Step 6: Final answer
    x = 6,137.82

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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.