Home / 18,127.56-27,186.36-4,976.80

Finding the Fourth Proportional to 18,127.56, 27,186.36 and 4,976.80

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Solution

The fourth proportional to 18,127.56, 27,186.36 and 4,976.80 is: 7,463.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.56 : 27,186.36 = 4,976.80 : x
  2. Step 2: Convert to fraction form
    18,127.56/27,186.36 = 4,976.80/x
  3. Step 3: Cross multiply
    18,127.56x = 27,186.36 × 4,976.80
  4. Step 4: Simplify right side
    18,127.56x = 135,301,076.45
  5. Step 5: Solve for x
    x = 135,301,076.45/18,127.56
  6. Step 6: Final answer
    x = 7,463.83

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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.