Home / 13,550.56-20,332.32-4,789.60

Finding the Fourth Proportional to 13,550.56, 20,332.32 and 4,789.60

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Solution

The fourth proportional to 13,550.56, 20,332.32 and 4,789.60 is: 7,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.56 : 20,332.32 = 4,789.60 : x
  2. Step 2: Convert to fraction form
    13,550.56/20,332.32 = 4,789.60/x
  3. Step 3: Cross multiply
    13,550.56x = 20,332.32 × 4,789.60
  4. Step 4: Simplify right side
    13,550.56x = 97,383,679.87
  5. Step 5: Solve for x
    x = 97,383,679.87/13,550.56
  6. Step 6: Final answer
    x = 7,186.69

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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.