Home / 11,490.49-17,221.80-5,241.94

Finding the Fourth Proportional to 11,490.49, 17,221.80 and 5,241.94

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Solution

The fourth proportional to 11,490.49, 17,221.80 and 5,241.94 is: 7,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.49 : 17,221.80 = 5,241.94 : x
  2. Step 2: Convert to fraction form
    11,490.49/17,221.80 = 5,241.94/x
  3. Step 3: Cross multiply
    11,490.49x = 17,221.80 × 5,241.94
  4. Step 4: Simplify right side
    11,490.49x = 90,275,642.29
  5. Step 5: Solve for x
    x = 90,275,642.29/11,490.49
  6. Step 6: Final answer
    x = 7,856.55

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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.