Home / 18,140.79-27,229.73-9,381.99

Finding the Fourth Proportional to 18,140.79, 27,229.73 and 9,381.99

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Solution

The fourth proportional to 18,140.79, 27,229.73 and 9,381.99 is: 14,082.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.79 : 27,229.73 = 9,381.99 : x
  2. Step 2: Convert to fraction form
    18,140.79/27,229.73 = 9,381.99/x
  3. Step 3: Cross multiply
    18,140.79x = 27,229.73 × 9,381.99
  4. Step 4: Simplify right side
    18,140.79x = 255,469,007.65
  5. Step 5: Solve for x
    x = 255,469,007.65/18,140.79
  6. Step 6: Final answer
    x = 14,082.57

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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.