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Finding the Fourth Proportional to 8,843.40, 13,265.10 and 5,905.80

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Solution

The fourth proportional to 8,843.40, 13,265.10 and 5,905.80 is: 8,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,843.40 : 13,265.10 = 5,905.80 : x
  2. Step 2: Convert to fraction form
    8,843.40/13,265.10 = 5,905.80/x
  3. Step 3: Cross multiply
    8,843.40x = 13,265.10 × 5,905.80
  4. Step 4: Simplify right side
    8,843.40x = 78,341,027.58
  5. Step 5: Solve for x
    x = 78,341,027.58/8,843.40
  6. Step 6: Final answer
    x = 8,858.70

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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.