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Finding the Fourth Proportional to 8,958.01, 13,347 and 8,455

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Solution

The fourth proportional to 8,958.01, 13,347 and 8,455 is: 12,597.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.01 : 13,347 = 8,455 : x
  2. Step 2: Convert to fraction form
    8,958.01/13,347 = 8,455/x
  3. Step 3: Cross multiply
    8,958.01x = 13,347 × 8,455
  4. Step 4: Simplify right side
    8,958.01x = 112,848,885
  5. Step 5: Solve for x
    x = 112,848,885/8,958.01
  6. Step 6: Final answer
    x = 12,597.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.