Home / 18,399.72-27,531.54-11,009.28

Finding the Fourth Proportional to 18,399.72, 27,531.54 and 11,009.28

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Solution

The fourth proportional to 18,399.72, 27,531.54 and 11,009.28 is: 16,473.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.72 : 27,531.54 = 11,009.28 : x
  2. Step 2: Convert to fraction form
    18,399.72/27,531.54 = 11,009.28/x
  3. Step 3: Cross multiply
    18,399.72x = 27,531.54 × 11,009.28
  4. Step 4: Simplify right side
    18,399.72x = 303,102,432.69
  5. Step 5: Solve for x
    x = 303,102,432.69/18,399.72
  6. Step 6: Final answer
    x = 16,473.21

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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.