Home / 8,747.65-13,121.78-2,824.53

Finding the Fourth Proportional to 8,747.65, 13,121.78 and 2,824.53

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Solution

The fourth proportional to 8,747.65, 13,121.78 and 2,824.53 is: 4,236.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.65 : 13,121.78 = 2,824.53 : x
  2. Step 2: Convert to fraction form
    8,747.65/13,121.78 = 2,824.53/x
  3. Step 3: Cross multiply
    8,747.65x = 13,121.78 × 2,824.53
  4. Step 4: Simplify right side
    8,747.65x = 37,062,861.26
  5. Step 5: Solve for x
    x = 37,062,861.26/8,747.65
  6. Step 6: Final answer
    x = 4,236.89

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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.