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Finding the Fourth Proportional to 12,733, 17,572.08 and 7,144

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Solution

The fourth proportional to 12,733, 17,572.08 and 7,144 is: 9,859.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,733 : 17,572.08 = 7,144 : x
  2. Step 2: Convert to fraction form
    12,733/17,572.08 = 7,144/x
  3. Step 3: Cross multiply
    12,733x = 17,572.08 × 7,144
  4. Step 4: Simplify right side
    12,733x = 125,534,939.52
  5. Step 5: Solve for x
    x = 125,534,939.52/12,733
  6. Step 6: Final answer
    x = 9,859.02

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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.