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Finding the Fourth Proportional to 8,805.48, 13,208.70 and 2,231.72

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Solution

The fourth proportional to 8,805.48, 13,208.70 and 2,231.72 is: 3,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.48 : 13,208.70 = 2,231.72 : x
  2. Step 2: Convert to fraction form
    8,805.48/13,208.70 = 2,231.72/x
  3. Step 3: Cross multiply
    8,805.48x = 13,208.70 × 2,231.72
  4. Step 4: Simplify right side
    8,805.48x = 29,478,095.08
  5. Step 5: Solve for x
    x = 29,478,095.08/8,805.48
  6. Step 6: Final answer
    x = 3,347.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.