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Finding the Fourth Proportional to 11,988.44, 17,973.48 and 9,901.88

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Solution

The fourth proportional to 11,988.44, 17,973.48 and 9,901.88 is: 14,845.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.44 : 17,973.48 = 9,901.88 : x
  2. Step 2: Convert to fraction form
    11,988.44/17,973.48 = 9,901.88/x
  3. Step 3: Cross multiply
    11,988.44x = 17,973.48 × 9,901.88
  4. Step 4: Simplify right side
    11,988.44x = 177,971,242.14
  5. Step 5: Solve for x
    x = 177,971,242.14/11,988.44
  6. Step 6: Final answer
    x = 14,845.24

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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.