Home / 9,429.41-13,012.07-5,179.64

Finding the Fourth Proportional to 9,429.41, 13,012.07 and 5,179.64

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Solution

The fourth proportional to 9,429.41, 13,012.07 and 5,179.64 is: 7,147.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.41 : 13,012.07 = 5,179.64 : x
  2. Step 2: Convert to fraction form
    9,429.41/13,012.07 = 5,179.64/x
  3. Step 3: Cross multiply
    9,429.41x = 13,012.07 × 5,179.64
  4. Step 4: Simplify right side
    9,429.41x = 67,397,747.30
  5. Step 5: Solve for x
    x = 67,397,747.30/9,429.41
  6. Step 6: Final answer
    x = 7,147.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.