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Finding the Fourth Proportional to 9,443.70, 14,160.03 and 3,890.79

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Solution

The fourth proportional to 9,443.70, 14,160.03 and 3,890.79 is: 5,833.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,443.70 : 14,160.03 = 3,890.79 : x
  2. Step 2: Convert to fraction form
    9,443.70/14,160.03 = 3,890.79/x
  3. Step 3: Cross multiply
    9,443.70x = 14,160.03 × 3,890.79
  4. Step 4: Simplify right side
    9,443.70x = 55,093,703.12
  5. Step 5: Solve for x
    x = 55,093,703.12/9,443.70
  6. Step 6: Final answer
    x = 5,833.91

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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.