Home / 11,748.16-17,620.80-3,956.80

Finding the Fourth Proportional to 11,748.16, 17,620.80 and 3,956.80

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Solution

The fourth proportional to 11,748.16, 17,620.80 and 3,956.80 is: 5,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,748.16 : 17,620.80 = 3,956.80 : x
  2. Step 2: Convert to fraction form
    11,748.16/17,620.80 = 3,956.80/x
  3. Step 3: Cross multiply
    11,748.16x = 17,620.80 × 3,956.80
  4. Step 4: Simplify right side
    11,748.16x = 69,721,981.44
  5. Step 5: Solve for x
    x = 69,721,981.44/11,748.16
  6. Step 6: Final answer
    x = 5,934.72

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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.