Home / 11,855.92-17,792.65-5,615.95

Finding the Fourth Proportional to 11,855.92, 17,792.65 and 5,615.95

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Solution

The fourth proportional to 11,855.92, 17,792.65 and 5,615.95 is: 8,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.92 : 17,792.65 = 5,615.95 : x
  2. Step 2: Convert to fraction form
    11,855.92/17,792.65 = 5,615.95/x
  3. Step 3: Cross multiply
    11,855.92x = 17,792.65 × 5,615.95
  4. Step 4: Simplify right side
    11,855.92x = 99,922,515.72
  5. Step 5: Solve for x
    x = 99,922,515.72/11,855.92
  6. Step 6: Final answer
    x = 8,428.07

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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.