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Finding the Fourth Proportional to 8,699.57, 13,051.17 and 3,505.44

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Solution

The fourth proportional to 8,699.57, 13,051.17 and 3,505.44 is: 5,258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.57 : 13,051.17 = 3,505.44 : x
  2. Step 2: Convert to fraction form
    8,699.57/13,051.17 = 3,505.44/x
  3. Step 3: Cross multiply
    8,699.57x = 13,051.17 × 3,505.44
  4. Step 4: Simplify right side
    8,699.57x = 45,750,093.36
  5. Step 5: Solve for x
    x = 45,750,093.36/8,699.57
  6. Step 6: Final answer
    x = 5,258.89

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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.