Home / 13,949.55-20,914.20-6,550.20

Finding the Fourth Proportional to 13,949.55, 20,914.20 and 6,550.20

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Solution

The fourth proportional to 13,949.55, 20,914.20 and 6,550.20 is: 9,820.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.55 : 20,914.20 = 6,550.20 : x
  2. Step 2: Convert to fraction form
    13,949.55/20,914.20 = 6,550.20/x
  3. Step 3: Cross multiply
    13,949.55x = 20,914.20 × 6,550.20
  4. Step 4: Simplify right side
    13,949.55x = 136,992,192.84
  5. Step 5: Solve for x
    x = 136,992,192.84/13,949.55
  6. Step 6: Final answer
    x = 9,820.55

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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.