Home / 12,249.09-18,344.48-9,455.40

Finding the Fourth Proportional to 12,249.09, 18,344.48 and 9,455.40

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Solution

The fourth proportional to 12,249.09, 18,344.48 and 9,455.40 is: 14,160.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.09 : 18,344.48 = 9,455.40 : x
  2. Step 2: Convert to fraction form
    12,249.09/18,344.48 = 9,455.40/x
  3. Step 3: Cross multiply
    12,249.09x = 18,344.48 × 9,455.40
  4. Step 4: Simplify right side
    12,249.09x = 173,454,348.92
  5. Step 5: Solve for x
    x = 173,454,348.92/12,249.09
  6. Step 6: Final answer
    x = 14,160.59

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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.