Home / 13,230.60-19,845.88-5,433.92

Finding the Fourth Proportional to 13,230.60, 19,845.88 and 5,433.92

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Solution

The fourth proportional to 13,230.60, 19,845.88 and 5,433.92 is: 8,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.60 : 19,845.88 = 5,433.92 : x
  2. Step 2: Convert to fraction form
    13,230.60/19,845.88 = 5,433.92/x
  3. Step 3: Cross multiply
    13,230.60x = 19,845.88 × 5,433.92
  4. Step 4: Simplify right side
    13,230.60x = 107,840,924.25
  5. Step 5: Solve for x
    x = 107,840,924.25/13,230.60
  6. Step 6: Final answer
    x = 8,150.87

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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.