Home / 9,161.91-13,744.89-3,318.98

Finding the Fourth Proportional to 9,161.91, 13,744.89 and 3,318.98

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Solution

The fourth proportional to 9,161.91, 13,744.89 and 3,318.98 is: 4,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.91 : 13,744.89 = 3,318.98 : x
  2. Step 2: Convert to fraction form
    9,161.91/13,744.89 = 3,318.98/x
  3. Step 3: Cross multiply
    9,161.91x = 13,744.89 × 3,318.98
  4. Step 4: Simplify right side
    9,161.91x = 45,618,946.29
  5. Step 5: Solve for x
    x = 45,618,946.29/9,161.91
  6. Step 6: Final answer
    x = 4,979.20

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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.