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Finding the Fourth Proportional to 8,280.43, 11,411.69 and 7,017.44

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Solution

The fourth proportional to 8,280.43, 11,411.69 and 7,017.44 is: 9,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.43 : 11,411.69 = 7,017.44 : x
  2. Step 2: Convert to fraction form
    8,280.43/11,411.69 = 7,017.44/x
  3. Step 3: Cross multiply
    8,280.43x = 11,411.69 × 7,017.44
  4. Step 4: Simplify right side
    8,280.43x = 80,080,757.73
  5. Step 5: Solve for x
    x = 80,080,757.73/8,280.43
  6. Step 6: Final answer
    x = 9,671.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.