Home / 12,207.65-18,312.92-3,884.75

Finding the Fourth Proportional to 12,207.65, 18,312.92 and 3,884.75

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Solution

The fourth proportional to 12,207.65, 18,312.92 and 3,884.75 is: 5,827.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.65 : 18,312.92 = 3,884.75 : x
  2. Step 2: Convert to fraction form
    12,207.65/18,312.92 = 3,884.75/x
  3. Step 3: Cross multiply
    12,207.65x = 18,312.92 × 3,884.75
  4. Step 4: Simplify right side
    12,207.65x = 71,141,115.97
  5. Step 5: Solve for x
    x = 71,141,115.97/12,207.65
  6. Step 6: Final answer
    x = 5,827.58

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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.