Home / 15,748.82-21,733.36-8,675.39

Finding the Fourth Proportional to 15,748.82, 21,733.36 and 8,675.39

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Solution

The fourth proportional to 15,748.82, 21,733.36 and 8,675.39 is: 11,972.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.82 : 21,733.36 = 8,675.39 : x
  2. Step 2: Convert to fraction form
    15,748.82/21,733.36 = 8,675.39/x
  3. Step 3: Cross multiply
    15,748.82x = 21,733.36 × 8,675.39
  4. Step 4: Simplify right side
    15,748.82x = 188,545,265.34
  5. Step 5: Solve for x
    x = 188,545,265.34/15,748.82
  6. Step 6: Final answer
    x = 11,972.03

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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.