Home / 11,687.07-17,530.60-2,921.98

Finding the Fourth Proportional to 11,687.07, 17,530.60 and 2,921.98

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Solution

The fourth proportional to 11,687.07, 17,530.60 and 2,921.98 is: 4,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687.07 : 17,530.60 = 2,921.98 : x
  2. Step 2: Convert to fraction form
    11,687.07/17,530.60 = 2,921.98/x
  3. Step 3: Cross multiply
    11,687.07x = 17,530.60 × 2,921.98
  4. Step 4: Simplify right side
    11,687.07x = 51,224,062.59
  5. Step 5: Solve for x
    x = 51,224,062.59/11,687.07
  6. Step 6: Final answer
    x = 4,382.97

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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.