Home / 12,006.38-18,009.34-5,427.97

Finding the Fourth Proportional to 12,006.38, 18,009.34 and 5,427.97

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Solution

The fourth proportional to 12,006.38, 18,009.34 and 5,427.97 is: 8,141.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.38 : 18,009.34 = 5,427.97 : x
  2. Step 2: Convert to fraction form
    12,006.38/18,009.34 = 5,427.97/x
  3. Step 3: Cross multiply
    12,006.38x = 18,009.34 × 5,427.97
  4. Step 4: Simplify right side
    12,006.38x = 97,754,098.65
  5. Step 5: Solve for x
    x = 97,754,098.65/12,006.38
  6. Step 6: Final answer
    x = 8,141.84

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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.