Home / 13,664.39-20,496.60-3,803.69

Finding the Fourth Proportional to 13,664.39, 20,496.60 and 3,803.69

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Solution

The fourth proportional to 13,664.39, 20,496.60 and 3,803.69 is: 5,705.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.39 : 20,496.60 = 3,803.69 : x
  2. Step 2: Convert to fraction form
    13,664.39/20,496.60 = 3,803.69/x
  3. Step 3: Cross multiply
    13,664.39x = 20,496.60 × 3,803.69
  4. Step 4: Simplify right side
    13,664.39x = 77,962,712.45
  5. Step 5: Solve for x
    x = 77,962,712.45/13,664.39
  6. Step 6: Final answer
    x = 5,705.54

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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.