Home / 11,883.48-17,812.85-3,980.04

Finding the Fourth Proportional to 11,883.48, 17,812.85 and 3,980.04

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Solution

The fourth proportional to 11,883.48, 17,812.85 and 3,980.04 is: 5,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,883.48 : 17,812.85 = 3,980.04 : x
  2. Step 2: Convert to fraction form
    11,883.48/17,812.85 = 3,980.04/x
  3. Step 3: Cross multiply
    11,883.48x = 17,812.85 × 3,980.04
  4. Step 4: Simplify right side
    11,883.48x = 70,895,768.82
  5. Step 5: Solve for x
    x = 70,895,768.82/11,883.48
  6. Step 6: Final answer
    x = 5,965.91

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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.