Home / 18,128.30-27,192.47-4,982.63

Finding the Fourth Proportional to 18,128.30, 27,192.47 and 4,982.63

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Solution

The fourth proportional to 18,128.30, 27,192.47 and 4,982.63 is: 7,473.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.30 : 27,192.47 = 4,982.63 : x
  2. Step 2: Convert to fraction form
    18,128.30/27,192.47 = 4,982.63/x
  3. Step 3: Cross multiply
    18,128.30x = 27,192.47 × 4,982.63
  4. Step 4: Simplify right side
    18,128.30x = 135,489,855.92
  5. Step 5: Solve for x
    x = 135,489,855.92/18,128.30
  6. Step 6: Final answer
    x = 7,473.94

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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.