Home / 11,971.44-17,972.48-8,047.92

Finding the Fourth Proportional to 11,971.44, 17,972.48 and 8,047.92

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Solution

The fourth proportional to 11,971.44, 17,972.48 and 8,047.92 is: 12,082.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.44 : 17,972.48 = 8,047.92 : x
  2. Step 2: Convert to fraction form
    11,971.44/17,972.48 = 8,047.92/x
  3. Step 3: Cross multiply
    11,971.44x = 17,972.48 × 8,047.92
  4. Step 4: Simplify right side
    11,971.44x = 144,641,081.24
  5. Step 5: Solve for x
    x = 144,641,081.24/11,971.44
  6. Step 6: Final answer
    x = 12,082.18

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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.