Home / 13,582.50-20,379.93-8,046.78

Finding the Fourth Proportional to 13,582.50, 20,379.93 and 8,046.78

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Solution

The fourth proportional to 13,582.50, 20,379.93 and 8,046.78 is: 12,073.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.50 : 20,379.93 = 8,046.78 : x
  2. Step 2: Convert to fraction form
    13,582.50/20,379.93 = 8,046.78/x
  3. Step 3: Cross multiply
    13,582.50x = 20,379.93 × 8,046.78
  4. Step 4: Simplify right side
    13,582.50x = 163,992,813.13
  5. Step 5: Solve for x
    x = 163,992,813.13/13,582.50
  6. Step 6: Final answer
    x = 12,073.83

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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.