Home / 13,582.35-20,363.87-5,255.35

Finding the Fourth Proportional to 13,582.35, 20,363.87 and 5,255.35

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Solution

The fourth proportional to 13,582.35, 20,363.87 and 5,255.35 is: 7,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.35 : 20,363.87 = 5,255.35 : x
  2. Step 2: Convert to fraction form
    13,582.35/20,363.87 = 5,255.35/x
  3. Step 3: Cross multiply
    13,582.35x = 20,363.87 × 5,255.35
  4. Step 4: Simplify right side
    13,582.35x = 107,019,226.43
  5. Step 5: Solve for x
    x = 107,019,226.43/13,582.35
  6. Step 6: Final answer
    x = 7,879.29

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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.