Home / 18,077.56-27,120.30-5,426.76

Finding the Fourth Proportional to 18,077.56, 27,120.30 and 5,426.76

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Solution

The fourth proportional to 18,077.56, 27,120.30 and 5,426.76 is: 8,141.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,077.56 : 27,120.30 = 5,426.76 : x
  2. Step 2: Convert to fraction form
    18,077.56/27,120.30 = 5,426.76/x
  3. Step 3: Cross multiply
    18,077.56x = 27,120.30 × 5,426.76
  4. Step 4: Simplify right side
    18,077.56x = 147,175,359.23
  5. Step 5: Solve for x
    x = 147,175,359.23/18,077.56
  6. Step 6: Final answer
    x = 8,141.33

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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.