Home / 18,447.12-27,659.28-7,923.96

Finding the Fourth Proportional to 18,447.12, 27,659.28 and 7,923.96

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Solution

The fourth proportional to 18,447.12, 27,659.28 and 7,923.96 is: 11,881.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.12 : 27,659.28 = 7,923.96 : x
  2. Step 2: Convert to fraction form
    18,447.12/27,659.28 = 7,923.96/x
  3. Step 3: Cross multiply
    18,447.12x = 27,659.28 × 7,923.96
  4. Step 4: Simplify right side
    18,447.12x = 219,171,028.35
  5. Step 5: Solve for x
    x = 219,171,028.35/18,447.12
  6. Step 6: Final answer
    x = 11,881.04

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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.