Home / 18,139.72-27,209.20-7,463.84

Finding the Fourth Proportional to 18,139.72, 27,209.20 and 7,463.84

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Solution

The fourth proportional to 18,139.72, 27,209.20 and 7,463.84 is: 11,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.72 : 27,209.20 = 7,463.84 : x
  2. Step 2: Convert to fraction form
    18,139.72/27,209.20 = 7,463.84/x
  3. Step 3: Cross multiply
    18,139.72x = 27,209.20 × 7,463.84
  4. Step 4: Simplify right side
    18,139.72x = 203,085,115.33
  5. Step 5: Solve for x
    x = 203,085,115.33/18,139.72
  6. Step 6: Final answer
    x = 11,195.60

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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.