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Finding the Fourth Proportional to 8,804.61, 13,209.96 and 5,513.79

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Solution

The fourth proportional to 8,804.61, 13,209.96 and 5,513.79 is: 8,272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,804.61 : 13,209.96 = 5,513.79 : x
  2. Step 2: Convert to fraction form
    8,804.61/13,209.96 = 5,513.79/x
  3. Step 3: Cross multiply
    8,804.61x = 13,209.96 × 5,513.79
  4. Step 4: Simplify right side
    8,804.61x = 72,836,945.35
  5. Step 5: Solve for x
    x = 72,836,945.35/8,804.61
  6. Step 6: Final answer
    x = 8,272.59

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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.