Home / 18,600.38-27,900.81-5,453.02

Finding the Fourth Proportional to 18,600.38, 27,900.81 and 5,453.02

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Solution

The fourth proportional to 18,600.38, 27,900.81 and 5,453.02 is: 8,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.38 : 27,900.81 = 5,453.02 : x
  2. Step 2: Convert to fraction form
    18,600.38/27,900.81 = 5,453.02/x
  3. Step 3: Cross multiply
    18,600.38x = 27,900.81 × 5,453.02
  4. Step 4: Simplify right side
    18,600.38x = 152,143,605.19
  5. Step 5: Solve for x
    x = 152,143,605.19/18,600.38
  6. Step 6: Final answer
    x = 8,179.60

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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.