Home / 9,112.27-13,668.90-2,872.77

Finding the Fourth Proportional to 9,112.27, 13,668.90 and 2,872.77

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Solution

The fourth proportional to 9,112.27, 13,668.90 and 2,872.77 is: 4,309.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.27 : 13,668.90 = 2,872.77 : x
  2. Step 2: Convert to fraction form
    9,112.27/13,668.90 = 2,872.77/x
  3. Step 3: Cross multiply
    9,112.27x = 13,668.90 × 2,872.77
  4. Step 4: Simplify right side
    9,112.27x = 39,267,605.85
  5. Step 5: Solve for x
    x = 39,267,605.85/9,112.27
  6. Step 6: Final answer
    x = 4,309.31

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1.5x scale

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.