Home / 11,985.38-17,951.88-9,881.75

Finding the Fourth Proportional to 11,985.38, 17,951.88 and 9,881.75

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Solution

The fourth proportional to 11,985.38, 17,951.88 and 9,881.75 is: 14,801.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.38 : 17,951.88 = 9,881.75 : x
  2. Step 2: Convert to fraction form
    11,985.38/17,951.88 = 9,881.75/x
  3. Step 3: Cross multiply
    11,985.38x = 17,951.88 × 9,881.75
  4. Step 4: Simplify right side
    11,985.38x = 177,395,990.19
  5. Step 5: Solve for x
    x = 177,395,990.19/11,985.38
  6. Step 6: Final answer
    x = 14,801.03

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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.