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Finding the Fourth Proportional to 8,943.86, 13,418.22 and 6,363.20

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Solution

The fourth proportional to 8,943.86, 13,418.22 and 6,363.20 is: 9,546.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.86 : 13,418.22 = 6,363.20 : x
  2. Step 2: Convert to fraction form
    8,943.86/13,418.22 = 6,363.20/x
  3. Step 3: Cross multiply
    8,943.86x = 13,418.22 × 6,363.20
  4. Step 4: Simplify right side
    8,943.86x = 85,382,817.50
  5. Step 5: Solve for x
    x = 85,382,817.50/8,943.86
  6. Step 6: Final answer
    x = 9,546.53

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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.