Home / 18,076.56-27,118.80-5,425.76

Finding the Fourth Proportional to 18,076.56, 27,118.80 and 5,425.76

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Solution

The fourth proportional to 18,076.56, 27,118.80 and 5,425.76 is: 8,139.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,076.56 : 27,118.80 = 5,425.76 : x
  2. Step 2: Convert to fraction form
    18,076.56/27,118.80 = 5,425.76/x
  3. Step 3: Cross multiply
    18,076.56x = 27,118.80 × 5,425.76
  4. Step 4: Simplify right side
    18,076.56x = 147,140,100.29
  5. Step 5: Solve for x
    x = 147,140,100.29/18,076.56
  6. Step 6: Final answer
    x = 8,139.83

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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.