Home / 11,607.20-17,409.16-3,815

Finding the Fourth Proportional to 11,607.20, 17,409.16 and 3,815

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Solution

The fourth proportional to 11,607.20, 17,409.16 and 3,815 is: 5,721.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,607.20 : 17,409.16 = 3,815 : x
  2. Step 2: Convert to fraction form
    11,607.20/17,409.16 = 3,815/x
  3. Step 3: Cross multiply
    11,607.20x = 17,409.16 × 3,815
  4. Step 4: Simplify right side
    11,607.20x = 66,415,945.40
  5. Step 5: Solve for x
    x = 66,415,945.40/11,607.20
  6. Step 6: Final answer
    x = 5,721.96

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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.