Home / 18,575.51-27,872.82-12,339.81

Finding the Fourth Proportional to 18,575.51, 27,872.82 and 12,339.81

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Solution

The fourth proportional to 18,575.51, 27,872.82 and 12,339.81 is: 18,516.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.51 : 27,872.82 = 12,339.81 : x
  2. Step 2: Convert to fraction form
    18,575.51/27,872.82 = 12,339.81/x
  3. Step 3: Cross multiply
    18,575.51x = 27,872.82 × 12,339.81
  4. Step 4: Simplify right side
    18,575.51x = 343,945,302.96
  5. Step 5: Solve for x
    x = 343,945,302.96/18,575.51
  6. Step 6: Final answer
    x = 18,516.07

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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.