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Finding the Fourth Proportional to 8,543.88, 12,821.96 and 3,614.90

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Solution

The fourth proportional to 8,543.88, 12,821.96 and 3,614.90 is: 5,424.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.88 : 12,821.96 = 3,614.90 : x
  2. Step 2: Convert to fraction form
    8,543.88/12,821.96 = 3,614.90/x
  3. Step 3: Cross multiply
    8,543.88x = 12,821.96 × 3,614.90
  4. Step 4: Simplify right side
    8,543.88x = 46,350,048.13
  5. Step 5: Solve for x
    x = 46,350,048.13/8,543.88
  6. Step 6: Final answer
    x = 5,424.94

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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.