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Finding the Fourth Proportional to 8,863.12, 13,271.04 and 7,018

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Solution

The fourth proportional to 8,863.12, 13,271.04 and 7,018 is: 10,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.12 : 13,271.04 = 7,018 : x
  2. Step 2: Convert to fraction form
    8,863.12/13,271.04 = 7,018/x
  3. Step 3: Cross multiply
    8,863.12x = 13,271.04 × 7,018
  4. Step 4: Simplify right side
    8,863.12x = 93,136,158.72
  5. Step 5: Solve for x
    x = 93,136,158.72/8,863.12
  6. Step 6: Final answer
    x = 10,508.28

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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.