Home / 12,375.36-18,559.38-3,607.53

Finding the Fourth Proportional to 12,375.36, 18,559.38 and 3,607.53

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Solution

The fourth proportional to 12,375.36, 18,559.38 and 3,607.53 is: 5,410.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.36 : 18,559.38 = 3,607.53 : x
  2. Step 2: Convert to fraction form
    12,375.36/18,559.38 = 3,607.53/x
  3. Step 3: Cross multiply
    12,375.36x = 18,559.38 × 3,607.53
  4. Step 4: Simplify right side
    12,375.36x = 66,953,520.13
  5. Step 5: Solve for x
    x = 66,953,520.13/12,375.36
  6. Step 6: Final answer
    x = 5,410.23

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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.