Home / 9,786.88-14,680.32-2,861.38

Finding the Fourth Proportional to 9,786.88, 14,680.32 and 2,861.38

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Solution

The fourth proportional to 9,786.88, 14,680.32 and 2,861.38 is: 4,292.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,786.88 : 14,680.32 = 2,861.38 : x
  2. Step 2: Convert to fraction form
    9,786.88/14,680.32 = 2,861.38/x
  3. Step 3: Cross multiply
    9,786.88x = 14,680.32 × 2,861.38
  4. Step 4: Simplify right side
    9,786.88x = 42,005,974.04
  5. Step 5: Solve for x
    x = 42,005,974.04/9,786.88
  6. Step 6: Final answer
    x = 4,292.07

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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.