Home / 18,537.06-27,808.32-5,387.72

Finding the Fourth Proportional to 18,537.06, 27,808.32 and 5,387.72

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Solution

The fourth proportional to 18,537.06, 27,808.32 and 5,387.72 is: 8,082.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,537.06 : 27,808.32 = 5,387.72 : x
  2. Step 2: Convert to fraction form
    18,537.06/27,808.32 = 5,387.72/x
  3. Step 3: Cross multiply
    18,537.06x = 27,808.32 × 5,387.72
  4. Step 4: Simplify right side
    18,537.06x = 149,823,302.79
  5. Step 5: Solve for x
    x = 149,823,302.79/18,537.06
  6. Step 6: Final answer
    x = 8,082.37

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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.