Home / 18,565.26-25,629.39-12,107.82

Finding the Fourth Proportional to 18,565.26, 25,629.39 and 12,107.82

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Solution

The fourth proportional to 18,565.26, 25,629.39 and 12,107.82 is: 16,714.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.26 : 25,629.39 = 12,107.82 : x
  2. Step 2: Convert to fraction form
    18,565.26/25,629.39 = 12,107.82/x
  3. Step 3: Cross multiply
    18,565.26x = 25,629.39 × 12,107.82
  4. Step 4: Simplify right side
    18,565.26x = 310,316,040.83
  5. Step 5: Solve for x
    x = 310,316,040.83/18,565.26
  6. Step 6: Final answer
    x = 16,714.88

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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.