Home / 12,400.53-18,600.80-3,635.48

Finding the Fourth Proportional to 12,400.53, 18,600.80 and 3,635.48

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Solution

The fourth proportional to 12,400.53, 18,600.80 and 3,635.48 is: 5,453.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.53 : 18,600.80 = 3,635.48 : x
  2. Step 2: Convert to fraction form
    12,400.53/18,600.80 = 3,635.48/x
  3. Step 3: Cross multiply
    12,400.53x = 18,600.80 × 3,635.48
  4. Step 4: Simplify right side
    12,400.53x = 67,622,725.20
  5. Step 5: Solve for x
    x = 67,622,725.20/12,400.53
  6. Step 6: Final answer
    x = 5,453.21

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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.