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Finding the Fourth Proportional to 11,819.24, 17,735.04 and 7,658.18

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Solution

The fourth proportional to 11,819.24, 17,735.04 and 7,658.18 is: 11,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.24 : 17,735.04 = 7,658.18 : x
  2. Step 2: Convert to fraction form
    11,819.24/17,735.04 = 7,658.18/x
  3. Step 3: Cross multiply
    11,819.24x = 17,735.04 × 7,658.18
  4. Step 4: Simplify right side
    11,819.24x = 135,818,128.63
  5. Step 5: Solve for x
    x = 135,818,128.63/11,819.24
  6. Step 6: Final answer
    x = 11,491.27

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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.