Home / 13,388.35-20,083.53-4,503.70

Finding the Fourth Proportional to 13,388.35, 20,083.53 and 4,503.70

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Solution

The fourth proportional to 13,388.35, 20,083.53 and 4,503.70 is: 6,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.35 : 20,083.53 = 4,503.70 : x
  2. Step 2: Convert to fraction form
    13,388.35/20,083.53 = 4,503.70/x
  3. Step 3: Cross multiply
    13,388.35x = 20,083.53 × 4,503.70
  4. Step 4: Simplify right side
    13,388.35x = 90,450,143.85
  5. Step 5: Solve for x
    x = 90,450,143.85/13,388.35
  6. Step 6: Final answer
    x = 6,755.89

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1.5x scale

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.