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Finding the Fourth Proportional to 11,000.60, 16,490.10 and 5,454.80

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Solution

The fourth proportional to 11,000.60, 16,490.10 and 5,454.80 is: 8,176.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.60 : 16,490.10 = 5,454.80 : x
  2. Step 2: Convert to fraction form
    11,000.60/16,490.10 = 5,454.80/x
  3. Step 3: Cross multiply
    11,000.60x = 16,490.10 × 5,454.80
  4. Step 4: Simplify right side
    11,000.60x = 89,950,197.48
  5. Step 5: Solve for x
    x = 89,950,197.48/11,000.60
  6. Step 6: Final answer
    x = 8,176.84

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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.