Home / 17,147.63-25,651.28-12,956.49

Finding the Fourth Proportional to 17,147.63, 25,651.28 and 12,956.49

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Solution

The fourth proportional to 17,147.63, 25,651.28 and 12,956.49 is: 19,381.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,147.63 : 25,651.28 = 12,956.49 : x
  2. Step 2: Convert to fraction form
    17,147.63/25,651.28 = 12,956.49/x
  3. Step 3: Cross multiply
    17,147.63x = 25,651.28 × 12,956.49
  4. Step 4: Simplify right side
    17,147.63x = 332,350,585.20
  5. Step 5: Solve for x
    x = 332,350,585.20/17,147.63
  6. Step 6: Final answer
    x = 19,381.72

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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.