Home / 18,123.11-27,164.20-9,784.56

Finding the Fourth Proportional to 18,123.11, 27,164.20 and 9,784.56

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Solution

The fourth proportional to 18,123.11, 27,164.20 and 9,784.56 is: 14,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.11 : 27,164.20 = 9,784.56 : x
  2. Step 2: Convert to fraction form
    18,123.11/27,164.20 = 9,784.56/x
  3. Step 3: Cross multiply
    18,123.11x = 27,164.20 × 9,784.56
  4. Step 4: Simplify right side
    18,123.11x = 265,789,744.75
  5. Step 5: Solve for x
    x = 265,789,744.75/18,123.11
  6. Step 6: Final answer
    x = 14,665.79

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1.5x scale

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.