Home / 11,885.92-17,827.51-3,121.53

Finding the Fourth Proportional to 11,885.92, 17,827.51 and 3,121.53

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Solution

The fourth proportional to 11,885.92, 17,827.51 and 3,121.53 is: 4,681.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.92 : 17,827.51 = 3,121.53 : x
  2. Step 2: Convert to fraction form
    11,885.92/17,827.51 = 3,121.53/x
  3. Step 3: Cross multiply
    11,885.92x = 17,827.51 × 3,121.53
  4. Step 4: Simplify right side
    11,885.92x = 55,649,107.29
  5. Step 5: Solve for x
    x = 55,649,107.29/11,885.92
  6. Step 6: Final answer
    x = 4,681.94

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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.