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Finding the Fourth Proportional to 15,174.48, 20,941.41 and 8,460.09

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Solution

The fourth proportional to 15,174.48, 20,941.41 and 8,460.09 is: 11,675.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.48 : 20,941.41 = 8,460.09 : x
  2. Step 2: Convert to fraction form
    15,174.48/20,941.41 = 8,460.09/x
  3. Step 3: Cross multiply
    15,174.48x = 20,941.41 × 8,460.09
  4. Step 4: Simplify right side
    15,174.48x = 177,166,213.33
  5. Step 5: Solve for x
    x = 177,166,213.33/15,174.48
  6. Step 6: Final answer
    x = 11,675.27

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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.