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Finding the Fourth Proportional to 8,266.64, 12,403.56 and 3,883.76

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Solution

The fourth proportional to 8,266.64, 12,403.56 and 3,883.76 is: 5,827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.64 : 12,403.56 = 3,883.76 : x
  2. Step 2: Convert to fraction form
    8,266.64/12,403.56 = 3,883.76/x
  3. Step 3: Cross multiply
    8,266.64x = 12,403.56 × 3,883.76
  4. Step 4: Simplify right side
    8,266.64x = 48,172,450.19
  5. Step 5: Solve for x
    x = 48,172,450.19/8,266.64
  6. Step 6: Final answer
    x = 5,827.33

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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.