Home / 13,760.35-20,640.29-4,400.33

Finding the Fourth Proportional to 13,760.35, 20,640.29 and 4,400.33

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Solution

The fourth proportional to 13,760.35, 20,640.29 and 4,400.33 is: 6,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.35 : 20,640.29 = 4,400.33 : x
  2. Step 2: Convert to fraction form
    13,760.35/20,640.29 = 4,400.33/x
  3. Step 3: Cross multiply
    13,760.35x = 20,640.29 × 4,400.33
  4. Step 4: Simplify right side
    13,760.35x = 90,823,962.09
  5. Step 5: Solve for x
    x = 90,823,962.09/13,760.35
  6. Step 6: Final answer
    x = 6,600.41

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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.