Home / 11,317.62-16,972.11-6,120.66

Finding the Fourth Proportional to 11,317.62, 16,972.11 and 6,120.66

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Solution

The fourth proportional to 11,317.62, 16,972.11 and 6,120.66 is: 9,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.62 : 16,972.11 = 6,120.66 : x
  2. Step 2: Convert to fraction form
    11,317.62/16,972.11 = 6,120.66/x
  3. Step 3: Cross multiply
    11,317.62x = 16,972.11 × 6,120.66
  4. Step 4: Simplify right side
    11,317.62x = 103,880,514.79
  5. Step 5: Solve for x
    x = 103,880,514.79/11,317.62
  6. Step 6: Final answer
    x = 9,178.65

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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.