Home / 18,299.39-27,450.70-5,151.87

Finding the Fourth Proportional to 18,299.39, 27,450.70 and 5,151.87

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Solution

The fourth proportional to 18,299.39, 27,450.70 and 5,151.87 is: 7,728.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.39 : 27,450.70 = 5,151.87 : x
  2. Step 2: Convert to fraction form
    18,299.39/27,450.70 = 5,151.87/x
  3. Step 3: Cross multiply
    18,299.39x = 27,450.70 × 5,151.87
  4. Step 4: Simplify right side
    18,299.39x = 141,422,424.93
  5. Step 5: Solve for x
    x = 141,422,424.93/18,299.39
  6. Step 6: Final answer
    x = 7,728.26

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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.