Home / 9,128.27-13,687.26-2,889.85

Finding the Fourth Proportional to 9,128.27, 13,687.26 and 2,889.85

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Solution

The fourth proportional to 9,128.27, 13,687.26 and 2,889.85 is: 4,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.27 : 13,687.26 = 2,889.85 : x
  2. Step 2: Convert to fraction form
    9,128.27/13,687.26 = 2,889.85/x
  3. Step 3: Cross multiply
    9,128.27x = 13,687.26 × 2,889.85
  4. Step 4: Simplify right side
    9,128.27x = 39,554,128.31
  5. Step 5: Solve for x
    x = 39,554,128.31/9,128.27
  6. Step 6: Final answer
    x = 4,333.15

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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.