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Finding the Fourth Proportional to 13,587.92, 18,754.44 and 8,002.16

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Solution

The fourth proportional to 13,587.92, 18,754.44 and 8,002.16 is: 11,044.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.92 : 18,754.44 = 8,002.16 : x
  2. Step 2: Convert to fraction form
    13,587.92/18,754.44 = 8,002.16/x
  3. Step 3: Cross multiply
    13,587.92x = 18,754.44 × 8,002.16
  4. Step 4: Simplify right side
    13,587.92x = 150,076,029.59
  5. Step 5: Solve for x
    x = 150,076,029.59/13,587.92
  6. Step 6: Final answer
    x = 11,044.81

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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.