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Finding the Fourth Proportional to 8,171.55, 12,237.58 and 4,650.89

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Solution

The fourth proportional to 8,171.55, 12,237.58 and 4,650.89 is: 6,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.55 : 12,237.58 = 4,650.89 : x
  2. Step 2: Convert to fraction form
    8,171.55/12,237.58 = 4,650.89/x
  3. Step 3: Cross multiply
    8,171.55x = 12,237.58 × 4,650.89
  4. Step 4: Simplify right side
    8,171.55x = 56,915,638.45
  5. Step 5: Solve for x
    x = 56,915,638.45/8,171.55
  6. Step 6: Final answer
    x = 6,965.10

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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.