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Finding the Fourth Proportional to 8,622.05, 11,899.07 and 4,845.54

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Solution

The fourth proportional to 8,622.05, 11,899.07 and 4,845.54 is: 6,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.05 : 11,899.07 = 4,845.54 : x
  2. Step 2: Convert to fraction form
    8,622.05/11,899.07 = 4,845.54/x
  3. Step 3: Cross multiply
    8,622.05x = 11,899.07 × 4,845.54
  4. Step 4: Simplify right side
    8,622.05x = 57,657,391.28
  5. Step 5: Solve for x
    x = 57,657,391.28/8,622.05
  6. Step 6: Final answer
    x = 6,687.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.