Home / 18,278.79-27,399.29-9,956.54

Finding the Fourth Proportional to 18,278.79, 27,399.29 and 9,956.54

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Solution

The fourth proportional to 18,278.79, 27,399.29 and 9,956.54 is: 14,924.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.79 : 27,399.29 = 9,956.54 : x
  2. Step 2: Convert to fraction form
    18,278.79/27,399.29 = 9,956.54/x
  3. Step 3: Cross multiply
    18,278.79x = 27,399.29 × 9,956.54
  4. Step 4: Simplify right side
    18,278.79x = 272,801,940.08
  5. Step 5: Solve for x
    x = 272,801,940.08/18,278.79
  6. Step 6: Final answer
    x = 14,924.51

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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.