Home / 13,747.89-20,622.77-4,388.62

Finding the Fourth Proportional to 13,747.89, 20,622.77 and 4,388.62

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Solution

The fourth proportional to 13,747.89, 20,622.77 and 4,388.62 is: 6,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.89 : 20,622.77 = 4,388.62 : x
  2. Step 2: Convert to fraction form
    13,747.89/20,622.77 = 4,388.62/x
  3. Step 3: Cross multiply
    13,747.89x = 20,622.77 × 4,388.62
  4. Step 4: Simplify right side
    13,747.89x = 90,505,460.29
  5. Step 5: Solve for x
    x = 90,505,460.29/13,747.89
  6. Step 6: Final answer
    x = 6,583.23

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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.