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Finding the Fourth Proportional to 12,448.35, 17,184.56 and 8,913.51

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Solution

The fourth proportional to 12,448.35, 17,184.56 and 8,913.51 is: 12,304.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.35 : 17,184.56 = 8,913.51 : x
  2. Step 2: Convert to fraction form
    12,448.35/17,184.56 = 8,913.51/x
  3. Step 3: Cross multiply
    12,448.35x = 17,184.56 × 8,913.51
  4. Step 4: Simplify right side
    12,448.35x = 153,174,702.84
  5. Step 5: Solve for x
    x = 153,174,702.84/12,448.35
  6. Step 6: Final answer
    x = 12,304.82

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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.