Home / 11,817.19-17,721.92-4,319.02

Finding the Fourth Proportional to 11,817.19, 17,721.92 and 4,319.02

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Solution

The fourth proportional to 11,817.19, 17,721.92 and 4,319.02 is: 6,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817.19 : 17,721.92 = 4,319.02 : x
  2. Step 2: Convert to fraction form
    11,817.19/17,721.92 = 4,319.02/x
  3. Step 3: Cross multiply
    11,817.19x = 17,721.92 × 4,319.02
  4. Step 4: Simplify right side
    11,817.19x = 76,541,359.87
  5. Step 5: Solve for x
    x = 76,541,359.87/11,817.19
  6. Step 6: Final answer
    x = 6,477.12

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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.