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Finding the Fourth Proportional to 12,429.93, 17,153.29 and 6,840.93

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Solution

The fourth proportional to 12,429.93, 17,153.29 and 6,840.93 is: 9,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.93 : 17,153.29 = 6,840.93 : x
  2. Step 2: Convert to fraction form
    12,429.93/17,153.29 = 6,840.93/x
  3. Step 3: Cross multiply
    12,429.93x = 17,153.29 × 6,840.93
  4. Step 4: Simplify right side
    12,429.93x = 117,344,456.16
  5. Step 5: Solve for x
    x = 117,344,456.16/12,429.93
  6. Step 6: Final answer
    x = 9,440.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.