Home / 12,281.67-18,427.38-4,491.09

Finding the Fourth Proportional to 12,281.67, 18,427.38 and 4,491.09

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Solution

The fourth proportional to 12,281.67, 18,427.38 and 4,491.09 is: 6,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.67 : 18,427.38 = 4,491.09 : x
  2. Step 2: Convert to fraction form
    12,281.67/18,427.38 = 4,491.09/x
  3. Step 3: Cross multiply
    12,281.67x = 18,427.38 × 4,491.09
  4. Step 4: Simplify right side
    12,281.67x = 82,759,022.04
  5. Step 5: Solve for x
    x = 82,759,022.04/12,281.67
  6. Step 6: Final answer
    x = 6,738.42

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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.