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Finding the Fourth Proportional to 14,249.54, 19,559.03 and 13,640.60

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Solution

The fourth proportional to 14,249.54, 19,559.03 and 13,640.60 is: 18,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,249.54 : 19,559.03 = 13,640.60 : x
  2. Step 2: Convert to fraction form
    14,249.54/19,559.03 = 13,640.60/x
  3. Step 3: Cross multiply
    14,249.54x = 19,559.03 × 13,640.60
  4. Step 4: Simplify right side
    14,249.54x = 266,796,885.31
  5. Step 5: Solve for x
    x = 266,796,885.31/14,249.54
  6. Step 6: Final answer
    x = 18,723.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.