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Finding the Fourth Proportional to 8,543.63, 12,817.61 and 2,387.63

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Solution

The fourth proportional to 8,543.63, 12,817.61 and 2,387.63 is: 3,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.63 : 12,817.61 = 2,387.63 : x
  2. Step 2: Convert to fraction form
    8,543.63/12,817.61 = 2,387.63/x
  3. Step 3: Cross multiply
    8,543.63x = 12,817.61 × 2,387.63
  4. Step 4: Simplify right side
    8,543.63x = 30,603,634.14
  5. Step 5: Solve for x
    x = 30,603,634.14/8,543.63
  6. Step 6: Final answer
    x = 3,582.04

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1.5x scale

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.