Home / 13,635.16-20,454.90-4,399

Finding the Fourth Proportional to 13,635.16, 20,454.90 and 4,399

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Solution

The fourth proportional to 13,635.16, 20,454.90 and 4,399 is: 6,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.16 : 20,454.90 = 4,399 : x
  2. Step 2: Convert to fraction form
    13,635.16/20,454.90 = 4,399/x
  3. Step 3: Cross multiply
    13,635.16x = 20,454.90 × 4,399
  4. Step 4: Simplify right side
    13,635.16x = 89,981,105.10
  5. Step 5: Solve for x
    x = 89,981,105.10/13,635.16
  6. Step 6: Final answer
    x = 6,599.20

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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.