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Finding the Fourth Proportional to 13,411.98, 20,118.12 and 4,052.08

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Solution

The fourth proportional to 13,411.98, 20,118.12 and 4,052.08 is: 6,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.98 : 20,118.12 = 4,052.08 : x
  2. Step 2: Convert to fraction form
    13,411.98/20,118.12 = 4,052.08/x
  3. Step 3: Cross multiply
    13,411.98x = 20,118.12 × 4,052.08
  4. Step 4: Simplify right side
    13,411.98x = 81,520,131.10
  5. Step 5: Solve for x
    x = 81,520,131.10/13,411.98
  6. Step 6: Final answer
    x = 6,078.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.