Home / 18,265.92-27,403.61-5,118.41

Finding the Fourth Proportional to 18,265.92, 27,403.61 and 5,118.41

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Solution

The fourth proportional to 18,265.92, 27,403.61 and 5,118.41 is: 7,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.92 : 27,403.61 = 5,118.41 : x
  2. Step 2: Convert to fraction form
    18,265.92/27,403.61 = 5,118.41/x
  3. Step 3: Cross multiply
    18,265.92x = 27,403.61 × 5,118.41
  4. Step 4: Simplify right side
    18,265.92x = 140,262,748.85
  5. Step 5: Solve for x
    x = 140,262,748.85/18,265.92
  6. Step 6: Final answer
    x = 7,678.93

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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.