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Finding the Fourth Proportional to 8,289.39, 11,439.33 and 4,563.39

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Solution

The fourth proportional to 8,289.39, 11,439.33 and 4,563.39 is: 6,297.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.39 : 11,439.33 = 4,563.39 : x
  2. Step 2: Convert to fraction form
    8,289.39/11,439.33 = 4,563.39/x
  3. Step 3: Cross multiply
    8,289.39x = 11,439.33 × 4,563.39
  4. Step 4: Simplify right side
    8,289.39x = 52,202,124.13
  5. Step 5: Solve for x
    x = 52,202,124.13/8,289.39
  6. Step 6: Final answer
    x = 6,297.46

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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.