Home / 13,717.55-20,578.49-4,954.61

Finding the Fourth Proportional to 13,717.55, 20,578.49 and 4,954.61

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Solution

The fourth proportional to 13,717.55, 20,578.49 and 4,954.61 is: 7,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.55 : 20,578.49 = 4,954.61 : x
  2. Step 2: Convert to fraction form
    13,717.55/20,578.49 = 4,954.61/x
  3. Step 3: Cross multiply
    13,717.55x = 20,578.49 × 4,954.61
  4. Step 4: Simplify right side
    13,717.55x = 101,958,392.34
  5. Step 5: Solve for x
    x = 101,958,392.34/13,717.55
  6. Step 6: Final answer
    x = 7,432.70

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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.