Home / 11,971.10-17,967.59-9,188.75

Finding the Fourth Proportional to 11,971.10, 17,967.59 and 9,188.75

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Solution

The fourth proportional to 11,971.10, 17,967.59 and 9,188.75 is: 13,791.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.10 : 17,967.59 = 9,188.75 : x
  2. Step 2: Convert to fraction form
    11,971.10/17,967.59 = 9,188.75/x
  3. Step 3: Cross multiply
    11,971.10x = 17,967.59 × 9,188.75
  4. Step 4: Simplify right side
    11,971.10x = 165,099,691.59
  5. Step 5: Solve for x
    x = 165,099,691.59/11,971.10
  6. Step 6: Final answer
    x = 13,791.52

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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.