Home / 13,698.03-20,550.12-4,338.61

Finding the Fourth Proportional to 13,698.03, 20,550.12 and 4,338.61

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Solution

The fourth proportional to 13,698.03, 20,550.12 and 4,338.61 is: 6,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.03 : 20,550.12 = 4,338.61 : x
  2. Step 2: Convert to fraction form
    13,698.03/20,550.12 = 4,338.61/x
  3. Step 3: Cross multiply
    13,698.03x = 20,550.12 × 4,338.61
  4. Step 4: Simplify right side
    13,698.03x = 89,158,956.13
  5. Step 5: Solve for x
    x = 89,158,956.13/13,698.03
  6. Step 6: Final answer
    x = 6,508.89

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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.