Home / 18,311.60-27,464.96-5,165.03

Finding the Fourth Proportional to 18,311.60, 27,464.96 and 5,165.03

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Solution

The fourth proportional to 18,311.60, 27,464.96 and 5,165.03 is: 7,746.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.60 : 27,464.96 = 5,165.03 : x
  2. Step 2: Convert to fraction form
    18,311.60/27,464.96 = 5,165.03/x
  3. Step 3: Cross multiply
    18,311.60x = 27,464.96 × 5,165.03
  4. Step 4: Simplify right side
    18,311.60x = 141,857,179.20
  5. Step 5: Solve for x
    x = 141,857,179.20/18,311.60
  6. Step 6: Final answer
    x = 7,746.85

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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.