Home / 8,531.62-12,797.03-2,986.21

Finding the Fourth Proportional to 8,531.62, 12,797.03 and 2,986.21

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Solution

The fourth proportional to 8,531.62, 12,797.03 and 2,986.21 is: 4,479.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.62 : 12,797.03 = 2,986.21 : x
  2. Step 2: Convert to fraction form
    8,531.62/12,797.03 = 2,986.21/x
  3. Step 3: Cross multiply
    8,531.62x = 12,797.03 × 2,986.21
  4. Step 4: Simplify right side
    8,531.62x = 38,214,594.43
  5. Step 5: Solve for x
    x = 38,214,594.43/8,531.62
  6. Step 6: Final answer
    x = 4,479.17

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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.