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Finding the Fourth Proportional to 11,640.97, 17,472.39 and 9,060.31

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Solution

The fourth proportional to 11,640.97, 17,472.39 and 9,060.31 is: 13,598.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.97 : 17,472.39 = 9,060.31 : x
  2. Step 2: Convert to fraction form
    11,640.97/17,472.39 = 9,060.31/x
  3. Step 3: Cross multiply
    11,640.97x = 17,472.39 × 9,060.31
  4. Step 4: Simplify right side
    11,640.97x = 158,305,269.84
  5. Step 5: Solve for x
    x = 158,305,269.84/11,640.97
  6. Step 6: Final answer
    x = 13,598.98

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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.