Home / 13,584.08-20,379.36-4,819.76

Finding the Fourth Proportional to 13,584.08, 20,379.36 and 4,819.76

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Solution

The fourth proportional to 13,584.08, 20,379.36 and 4,819.76 is: 7,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.08 : 20,379.36 = 4,819.76 : x
  2. Step 2: Convert to fraction form
    13,584.08/20,379.36 = 4,819.76/x
  3. Step 3: Cross multiply
    13,584.08x = 20,379.36 × 4,819.76
  4. Step 4: Simplify right side
    13,584.08x = 98,223,624.15
  5. Step 5: Solve for x
    x = 98,223,624.15/13,584.08
  6. Step 6: Final answer
    x = 7,230.79

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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.