Home / 11,930.16-17,895.24-4,141.20

Finding the Fourth Proportional to 11,930.16, 17,895.24 and 4,141.20

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Solution

The fourth proportional to 11,930.16, 17,895.24 and 4,141.20 is: 6,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.16 : 17,895.24 = 4,141.20 : x
  2. Step 2: Convert to fraction form
    11,930.16/17,895.24 = 4,141.20/x
  3. Step 3: Cross multiply
    11,930.16x = 17,895.24 × 4,141.20
  4. Step 4: Simplify right side
    11,930.16x = 74,107,767.89
  5. Step 5: Solve for x
    x = 74,107,767.89/11,930.16
  6. Step 6: Final answer
    x = 6,211.80

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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.