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Finding the Fourth Proportional to 11,804.88, 17,687.84 and 6,860.64

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Solution

The fourth proportional to 11,804.88, 17,687.84 and 6,860.64 is: 10,279.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,804.88 : 17,687.84 = 6,860.64 : x
  2. Step 2: Convert to fraction form
    11,804.88/17,687.84 = 6,860.64/x
  3. Step 3: Cross multiply
    11,804.88x = 17,687.84 × 6,860.64
  4. Step 4: Simplify right side
    11,804.88x = 121,349,902.62
  5. Step 5: Solve for x
    x = 121,349,902.62/11,804.88
  6. Step 6: Final answer
    x = 10,279.64

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1.5x scale

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.