Home / 12,558.21-18,832.37-5,538.53

Finding the Fourth Proportional to 12,558.21, 18,832.37 and 5,538.53

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Solution

The fourth proportional to 12,558.21, 18,832.37 and 5,538.53 is: 8,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.21 : 18,832.37 = 5,538.53 : x
  2. Step 2: Convert to fraction form
    12,558.21/18,832.37 = 5,538.53/x
  3. Step 3: Cross multiply
    12,558.21x = 18,832.37 × 5,538.53
  4. Step 4: Simplify right side
    12,558.21x = 104,303,524.36
  5. Step 5: Solve for x
    x = 104,303,524.36/12,558.21
  6. Step 6: Final answer
    x = 8,305.60

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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.