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Finding the Fourth Proportional to 11,483.74, 17,203.69 and 7,779.61

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Solution

The fourth proportional to 11,483.74, 17,203.69 and 7,779.61 is: 11,654.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,483.74 : 17,203.69 = 7,779.61 : x
  2. Step 2: Convert to fraction form
    11,483.74/17,203.69 = 7,779.61/x
  3. Step 3: Cross multiply
    11,483.74x = 17,203.69 × 7,779.61
  4. Step 4: Simplify right side
    11,483.74x = 133,837,998.76
  5. Step 5: Solve for x
    x = 133,837,998.76/11,483.74
  6. Step 6: Final answer
    x = 11,654.57

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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.