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Finding the Fourth Proportional to 8,608.85, 12,885.59 and 4,443.19

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Solution

The fourth proportional to 8,608.85, 12,885.59 and 4,443.19 is: 6,650.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.85 : 12,885.59 = 4,443.19 : x
  2. Step 2: Convert to fraction form
    8,608.85/12,885.59 = 4,443.19/x
  3. Step 3: Cross multiply
    8,608.85x = 12,885.59 × 4,443.19
  4. Step 4: Simplify right side
    8,608.85x = 57,253,124.63
  5. Step 5: Solve for x
    x = 57,253,124.63/8,608.85
  6. Step 6: Final answer
    x = 6,650.50

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Half scale
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Double scale
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Similar ratio
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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.