Home / 12,240.45-18,349.56-4,443.75

Finding the Fourth Proportional to 12,240.45, 18,349.56 and 4,443.75

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Solution

The fourth proportional to 12,240.45, 18,349.56 and 4,443.75 is: 6,661.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.45 : 18,349.56 = 4,443.75 : x
  2. Step 2: Convert to fraction form
    12,240.45/18,349.56 = 4,443.75/x
  3. Step 3: Cross multiply
    12,240.45x = 18,349.56 × 4,443.75
  4. Step 4: Simplify right side
    12,240.45x = 81,540,857.25
  5. Step 5: Solve for x
    x = 81,540,857.25/12,240.45
  6. Step 6: Final answer
    x = 6,661.59

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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.