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Finding the Fourth Proportional to 8,133.66, 12,200.67 and 4,235.58

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Solution

The fourth proportional to 8,133.66, 12,200.67 and 4,235.58 is: 6,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.66 : 12,200.67 = 4,235.58 : x
  2. Step 2: Convert to fraction form
    8,133.66/12,200.67 = 4,235.58/x
  3. Step 3: Cross multiply
    8,133.66x = 12,200.67 × 4,235.58
  4. Step 4: Simplify right side
    8,133.66x = 51,676,913.84
  5. Step 5: Solve for x
    x = 51,676,913.84/8,133.66
  6. Step 6: Final answer
    x = 6,353.46

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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.