Home / 11,977.88-17,966.80-3,657.93

Finding the Fourth Proportional to 11,977.88, 17,966.80 and 3,657.93

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Solution

The fourth proportional to 11,977.88, 17,966.80 and 3,657.93 is: 5,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.88 : 17,966.80 = 3,657.93 : x
  2. Step 2: Convert to fraction form
    11,977.88/17,966.80 = 3,657.93/x
  3. Step 3: Cross multiply
    11,977.88x = 17,966.80 × 3,657.93
  4. Step 4: Simplify right side
    11,977.88x = 65,721,296.72
  5. Step 5: Solve for x
    x = 65,721,296.72/11,977.88
  6. Step 6: Final answer
    x = 5,486.89

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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.