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Finding the Fourth Proportional to 12,703, 19,054.88 and 3,469

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Solution

The fourth proportional to 12,703, 19,054.88 and 3,469 is: 5,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703 : 19,054.88 = 3,469 : x
  2. Step 2: Convert to fraction form
    12,703/19,054.88 = 3,469/x
  3. Step 3: Cross multiply
    12,703x = 19,054.88 × 3,469
  4. Step 4: Simplify right side
    12,703x = 66,101,378.72
  5. Step 5: Solve for x
    x = 66,101,378.72/12,703
  6. Step 6: Final answer
    x = 5,203.60

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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.