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Finding the Fourth Proportional to 11,952.72, 17,899.80 and 9,859.92

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Solution

The fourth proportional to 11,952.72, 17,899.80 and 9,859.92 is: 14,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,952.72 : 17,899.80 = 9,859.92 : x
  2. Step 2: Convert to fraction form
    11,952.72/17,899.80 = 9,859.92/x
  3. Step 3: Cross multiply
    11,952.72x = 17,899.80 × 9,859.92
  4. Step 4: Simplify right side
    11,952.72x = 176,490,596.02
  5. Step 5: Solve for x
    x = 176,490,596.02/11,952.72
  6. Step 6: Final answer
    x = 14,765.73

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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.