Home / 12,249.12-18,376.52-5,229.40

Finding the Fourth Proportional to 12,249.12, 18,376.52 and 5,229.40

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Solution

The fourth proportional to 12,249.12, 18,376.52 and 5,229.40 is: 7,845.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.12 : 18,376.52 = 5,229.40 : x
  2. Step 2: Convert to fraction form
    12,249.12/18,376.52 = 5,229.40/x
  3. Step 3: Cross multiply
    12,249.12x = 18,376.52 × 5,229.40
  4. Step 4: Simplify right side
    12,249.12x = 96,098,173.69
  5. Step 5: Solve for x
    x = 96,098,173.69/12,249.12
  6. Step 6: Final answer
    x = 7,845.31

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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.