Home / 13,718.21-20,578.28-5,819.83

Finding the Fourth Proportional to 13,718.21, 20,578.28 and 5,819.83

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Solution

The fourth proportional to 13,718.21, 20,578.28 and 5,819.83 is: 8,730.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.21 : 20,578.28 = 5,819.83 : x
  2. Step 2: Convert to fraction form
    13,718.21/20,578.28 = 5,819.83/x
  3. Step 3: Cross multiply
    13,718.21x = 20,578.28 × 5,819.83
  4. Step 4: Simplify right side
    13,718.21x = 119,762,091.29
  5. Step 5: Solve for x
    x = 119,762,091.29/13,718.21
  6. Step 6: Final answer
    x = 8,730.15

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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.