Home / 11,269.94-16,937.71-5,430.65

Finding the Fourth Proportional to 11,269.94, 16,937.71 and 5,430.65

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Solution

The fourth proportional to 11,269.94, 16,937.71 and 5,430.65 is: 8,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.94 : 16,937.71 = 5,430.65 : x
  2. Step 2: Convert to fraction form
    11,269.94/16,937.71 = 5,430.65/x
  3. Step 3: Cross multiply
    11,269.94x = 16,937.71 × 5,430.65
  4. Step 4: Simplify right side
    11,269.94x = 91,982,676.55
  5. Step 5: Solve for x
    x = 91,982,676.55/11,269.94
  6. Step 6: Final answer
    x = 8,161.78

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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.