Home / 18,405.52-27,603.64-5,257.96

Finding the Fourth Proportional to 18,405.52, 27,603.64 and 5,257.96

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Solution

The fourth proportional to 18,405.52, 27,603.64 and 5,257.96 is: 7,885.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.52 : 27,603.64 = 5,257.96 : x
  2. Step 2: Convert to fraction form
    18,405.52/27,603.64 = 5,257.96/x
  3. Step 3: Cross multiply
    18,405.52x = 27,603.64 × 5,257.96
  4. Step 4: Simplify right side
    18,405.52x = 145,138,834.97
  5. Step 5: Solve for x
    x = 145,138,834.97/18,405.52
  6. Step 6: Final answer
    x = 7,885.61

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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.