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Finding the Fourth Proportional to 8,330.31, 12,502.08 and 4,383.87

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Solution

The fourth proportional to 8,330.31, 12,502.08 and 4,383.87 is: 6,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.31 : 12,502.08 = 4,383.87 : x
  2. Step 2: Convert to fraction form
    8,330.31/12,502.08 = 4,383.87/x
  3. Step 3: Cross multiply
    8,330.31x = 12,502.08 × 4,383.87
  4. Step 4: Simplify right side
    8,330.31x = 54,807,493.45
  5. Step 5: Solve for x
    x = 54,807,493.45/8,330.31
  6. Step 6: Final answer
    x = 6,579.29

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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.