Home / 18,236.24-27,353.80-7,139.80

Finding the Fourth Proportional to 18,236.24, 27,353.80 and 7,139.80

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Solution

The fourth proportional to 18,236.24, 27,353.80 and 7,139.80 is: 10,709.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,236.24 : 27,353.80 = 7,139.80 : x
  2. Step 2: Convert to fraction form
    18,236.24/27,353.80 = 7,139.80/x
  3. Step 3: Cross multiply
    18,236.24x = 27,353.80 × 7,139.80
  4. Step 4: Simplify right side
    18,236.24x = 195,300,661.24
  5. Step 5: Solve for x
    x = 195,300,661.24/18,236.24
  6. Step 6: Final answer
    x = 10,709.48

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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.