Home / 8,704.90-13,056.81-2,781.64

Finding the Fourth Proportional to 8,704.90, 13,056.81 and 2,781.64

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Solution

The fourth proportional to 8,704.90, 13,056.81 and 2,781.64 is: 4,172.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.90 : 13,056.81 = 2,781.64 : x
  2. Step 2: Convert to fraction form
    8,704.90/13,056.81 = 2,781.64/x
  3. Step 3: Cross multiply
    8,704.90x = 13,056.81 × 2,781.64
  4. Step 4: Simplify right side
    8,704.90x = 36,319,344.97
  5. Step 5: Solve for x
    x = 36,319,344.97/8,704.90
  6. Step 6: Final answer
    x = 4,172.29

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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.